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Cooper, J.A. 2014-: Studies of New Zealand agaric type collections not deposited in PDD (unpublished).
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Hohenbuehelia parsonsiae G. Stev. 1964
Hohenbuehelia parsonsiae G. Stev.
Hohenbuehelia parsonsiae G. Stev. 1964
Panellus metuloideus G. Stev. 1964
Panellus metuloideus G. Stev.
Hohenbuehelia parsonsiae G. Stev. 1964

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Boletellus lentistipitatus G. Stev. 1962 [1961]
[GS] Pileus 2-5-4 cm. diam., dry, light brown, surface fibrillose floccose, velvety when young; cuticle of interwoven hyphae; flesh soft, creamy, becoming slightly pink when cut. Pores variable in size, up to 2 mm. diam., tubes 4 mm. long, dull yellow, depressed round the stipe; hymenophoral trama divergent. Stipe 4 cm. x 3-4 mm., tough, unequal, pale fawn at top, darker or white at rooting base, some with attached rhizomorphs; flesh fawn coloured. Spores 10-12 x 5um ,light brown, with moderately thick walls indistinctly marked with broken longitudinal ridges. HABITAT:on fallen Nothofagus solandri in the Hutt Valley, 8.6.1952, P. Boszcell, and at Puramahoi, Nelson, 20.4.1955, Dorothy Read. One species possibly close to Boletellus lentistipitatus has been described from New Zealand by Heim (1951) though not yet with a full valid diagnosis. It is Boletus paradisiacus, a small species with a brown cap covered with tufts of fine black velvety tomentum, large pores in an orange-yellow pore layer which is depressed around the stipe. A tuft of yellow rhizomorphs is carried at the base of the slender stipe. The species was collected in Nothofagus forest at Paradise, Lake Wakatipu. [RFRM] PILEUS: convex to plano-convex, 2-4cm diam., dry, finely felted to subtomentose, pallid brown to cinnamon brown; cuticle a trichodermium, composed of erect, branched, septate hyphae 7-14 um diam., with brownish contents; margin entire. HYMENOPHORE: tubes to 4 mm long, excavated around apex of stipe, dull yellow at first, becoming darker yellow at maturity; pores concolorous with tubes, large, angular, to 2 mm diam. STIPE: 2-4 cm long, curved, more or less equal, 2-3 mm diam., solid, fibrous, dry, finely granular to furfuraceous by aggregation of caulocystidia, pallid fawn to creamy yellow apically. brownish basally; annulus absent; cream to yellow basal rhizomorphs often present. SPORES : spore print not obtained; spores pallid melleous, elliptic-subfusiform, 10.2-14.3(16.3) x 4-4.9(5.5) um. smooth. HYMENIUM: basidia hyaline, clavate, 28-37x7.5-12um, 4-spored; cystidia sparse, scattered, hyaline, thin-walled, subcylindrical to ventricose-rostrate, 36-56x7-12.5um. HYMENOPHORAL TRAMA: bilateral, of the Phylloporus subtype; clamp connections absent. CONTEXT OF PILEUS: sordid white to cream, turning faintly pink on exposure to air or unchanging. SMELL: not distinctive. Notes. There are a number of differences between the original description and that given above. The most important of these is that spores of the type specimen are smooth-walled and not indistinctly marked with broken, longitudinal ridges as described by Stevenson. Furthermore, the spores figured by Stevenson (fig. 2a) do not belong to Xerocomus lentistipitatus, and it would appear that the spores of this species and Tylopilus niveus G. Stevens, have been interchanged in the illustrations. From their size, shape, and ornamentation, the spores figured with T. niveus on p. 382 represent Stevenson's interpretation of the spores of Xerocomus lentistipitatus. The short, smooth-walled spores and hymenophoral trama of the Phylloporus subtype indicate that this species belongs in the Boletaceae rather than Strobilomycetaceae. It readily fits within Xerocomus, but in the absence of information on the ammonia reaction of fresh pilei it is not possible to assign it to one of the sections recognised by Singer (1962). X. lentistipitatus may be recognised by the dry, pallid brown to cinnamon brown pileus, yellow hymenophore, and pallid stipe. The presence of basal rhizomorphs appears to be a relatively constant character. [JAC] the type has no basal rhizomorphs. The spores are smooth. No hymenial cystidia observed. With hymenial oleiferous hyphae. Pileipellis a trichoderm of large oliferous hyphae and cylindrical/clavate terminal cells. Material exuding oil drops into melzers/KOH. Spores length=10.0–13.1µm (µ=10.9, σ=0.77), width=4.3–5.3µm (µ=4.9, σ=0.33), Q=1.9–2.7µm (µ=2.25, σ=0.21), n=20. Slightly dextrinoid. Pat Leonard has PL10115 as X. lentistipitatus, same as JAC10917 which I identified as X. squamulosus and sequences in that group, and with flesh staining blue/green. Presumably Pat's material did not stain blue, indicating a variable character. That would leave the apical stipe colour and presence of rhizomorphs to separate them. The type does not seem to have any rhizomorphs, and although Stevenson mentions rhizomorphs she does not say what colour. The type of X. squamulosus shows yellow hyphae at the stipe base.The only other collection seen by McNabb was PDD25253. A direct comparison of the two types suggests perhaps the furfuraceous cap of X. squamulosus is a separator. There is a possibility X. lentistipitatus is an earlier name for X. squamulosus but it is preferable to keep the name separate just in case a non-staining, yellow rhizomorph Xerocomus squamulosus look-alike does turn up (and is not also X. scabripes). Note that Horak has two collections under this name with images ZT69-121 and ZT68-169, neither deposited in PDD.
Cantharellula alpina G. Stev. 1964
[GS] Pileus 3-10 mm. diam., bright luteous, drying paler, hemispherical becoming plane, matt; flesh luteous. Gills decurrent, luteous, triangular, thick, distant, with a few folds or ridges between, rarely forked. Stipe 1-2 cm. X 1 mm., luteous, smooth or indistinctly striate, solid, moderately tough. Spores 8-9 X 4-5um amyloid (Fig. 1/34, p. 10); basidia 30-35 X 5-8um. Hymenophoral trama irregular, of loosely woven hyphae up to 5um diam. HABITAT: in mountain grassland, Molesworth, 2.4.1949, H H Allan; Arthur's Pass, 4.6.1949, M. Hamilton in Stevenson. [EH] According to unpublished data of Horak and McNabb, this species seems to be a member of the genus Hygrophoropsis rather than anything else. Both genera are characterised by vein-like, forked gills but are clearly separated by distinct microchemical reactions of the spore wall. [JC] the spores are inamyloid, or perhaps very faintly amyloid, not dextrinoid, thus not Hygrophoropsis. I'm sure there is an unamed Hygrophoropsis but this isn't it. The stems are associated with a bound lump of soil which has algal globose cells. This is quite clearly a Lichenomphalia related to the NZ complex called L. 'alpina' (unfortunately similar epithet). i.e, + L. 'Lewis' & L. umbellifera ss NZ. Amongst the possibilities L. umbellifera ss NZ is identical in morphology and that also with collections from from Arthur's Pass. This recorded as L. umbellifera from the campbell Islands. Cap a cutis of unclamped hyphae, some thick-walled/glassy. 4-spored. Basidia with basal clamp (not seen on all basidia). Spores length=7.8–9.9µm (µ=8.7, σ=0.63), width=4.1–5.5µm (µ=4.7, σ=0.35), Q=1.4–2.1µm (µ=1.88, σ=0.19), n=20. Requires a nom. nov. as L. stevensoniae
Cantharellula fistulosa G. Stev. 1964
[GS] Pileus 2.5-3.5 cm. diam., ochraceous buff overlain with sparse darker fibrils, moist at first drying subfibrillose, infundibuliform, opening at centre to stem cavity, margin down-turned, waved and becoming split; flesh thin, ochraceous. Gills decurrent, moderately distant, rather shallow, sometimes forking, ochraceous buff with a whitish bloom. Stipe 4-6.5 cm. x 2-3 mm., ochraceous, smooth, completely hollow, with a bulbous base. Spores 6 x 4um, amyloid, rather thin-walled, smooth (Fig. 1/37, p. 10); basidia 30 x 5um. Hymenophoral trama subregular with hyphae up to 5um diam. HABITAT: on fallen rotting wood, Korokoro, 1.5.1948 [EH] Spores oval, hyaline, amyloid, smooth, 5-6 X 3.5-4 um.; cheilocystidia club-shaped, thin-walled, 20-55 X 10—18 um, with clamp connection at the basal septum; cuticle of interwoven, cylindrical hyphae, forming a cutis, with scattered dermatocystidia-like cells. [JAC] cap tissue quite tough and elastic once revived (NH4OH). Stem base with a pad of radiating fibrils. Trama quite clearly sarcodimitic with long aseptate thick-wallled hyphae. Pileus a clamped cutis with brown and colourless vesicles (certainly Hydropoid). Vesicles usually broader than figured by Horak.The basidia are long. spores amyloid (neither strong nor weak). Cheilocystidia are present, collapsed, and generally cylindrical with occasional pleurocystidia-like - spherical/utriform. Occasional brown globose/utriform pleurocystidia present. Caulocystidia present on upper stem and like pleurocystidia and cap vesicles, some thick walled. Placement in Pseudoarmillariella (near Cantharellula in Lichenomphalia group) is understandable but more likely Clitocybula which is supported by sequence data from a morphologically similar collection. C. grisella is possibly just an immature version of this. Spores length=5.5–7.1µm (µ=6.4, σ=0.45), width=3.5–5.0µm (µ=4.1, σ=0.38), Q=1.3–2.0µm (µ=1.55, σ=0.14), n=30. Basidia 30 x 6 um.
Cantharellula foetida G. Stev. 1964
[GS]Pileus 3-4x5 cm. diam., fuscous to greyish sepia, overlain with radiating loosely anastomosing darker fibrils, concave to infundibuliform with a waved margin, sometimes with a small central umbo, sometimes opening at centre to stem cavity; flesh thin, greyish. Gills decurrent, thick, shallow, some forking, greyish. Stipe 2-3 cm. x 2-3 mm., fuscous to dark greyish sepia, smooth to cottony striate, rather tough, hollow, bulbous at base. Spores 7-8 X 5-6um, amyloid, smooth, moderately thin-walled (Fig. 1/33, p . 10). Hymenophoral trama regular with hyphae up to 10um, diam. Strong sour smell. HABITAT : on fallen wood, Eastbourne, 4.6.1949, Stevenson (type); Tararuas, Levin, 18.6.1949, Stevenson. [EH]Cuticle of repent, cylindrical, interwoven hyphae forming a cutis, with epimembranous pigment, clamp connections none. Spores oval, hyaline, neither amyloid nor dextrinoid, smooth, 5.5-7 X 5um.Cystidia none. [JAC] spores most certainly amyloid, thus imemdiately confirming later records as Pseudoclitocybe foetida. Gill edge dark macroscopically but without cystidia. Pileus an unclamped cutis with brown encrusting pigment. 4-spored basidia but spores very variable in size. length=6.2–8.5µm (µ=7.3, σ=0.71), width=4.9–6.4µm (µ=5.5, σ=0.42), Q=1.1–1.6µm (µ=1.33, σ=0.12), n=24 (minus apiculus). Basidia 40 x 10um. Interesting that Stevenson's notes in the packet indicate she originally thought it was (pseudoclitocybe) cyathiformis. Separated from C. fistulosa by clearly amyloid spores, membrane pigment, more equal and larger basidia and unclamped cap tissue.
Clitocybe nothofaginea G. Stev. 1964
[GS] Pileus 2-4-5 cm. diam., ochraceous, waxy, hemispherical, umbilicate to infundibuliform with an opening to stem cavity; flesh thin, pale ochraceous. Gills decurrent, creamy to pale ochraceous, thin, moderately crowded to moderately distant, long and short intercalated. Stipe 2-3.5 cm - X 2 -5 mm tapering to base, hollow, rather fragile to somewhat tough, creamy to ochraceous, silky striate to velutinate. Spores 5-6 X 3-3.5um, non-amyloid, oblong ovoid, thin-walled, smooth (Fig. 1/9, p. 10). Sour smell. HABITAT : under Nothofagus and other trees, strongly attached by mycelium to litter, 29.4.1956, Stevenson (type); Nelson, 14.6.1956 & 20.6.1956, D. Read. [EH] as Omphalina nothofaginea. Cuticle consisting of cylindrical, non-gelatinised, clampless hyphae forming a cutis, with epimembranous pigment. Spores oval, hyaline, neither amyloid nor dextrinoid, smooth, 5-6 X 3-4 um. Cystidia none. [JAC] Separable pellicle when rehydrated with NH4OH. Cutis clamped. Epimembranous pigment absent. With spherical vesicles. Spores (including apiculus) length=4.9–6.2µm (µ=5.6, σ=0.39), width=3.2–4.0µm (µ=3.7, σ=0.22), Q=1.4–2.0µm (µ=1.54, σ=0.13), n=20. Clearly the same as C. (Singerocybe) clitocyboides and a later synonym. The collection is not mixed and all forms in the sample have clamps and vesicles. It will be worth checking the type of Leucopaxillus otagoensis to ensure there was not a switch of Egon's notes associated with the two species.
Clitocybe wellingtonensis G.M. Taylor & G. Stev. 1964
[GS] Pileus 2-2.6 cm. diam., creamy, orange at centre, convex with a broad umbilicus, moist at first, drying smooth; flesh soft, white. Gills decurrent, moderately distant, creamy, margins slightly waved. Stipe 3 cm. x 3-6 mm., thicker at base, creamy or with ochraceous tints; flesh soft, white. Spores 4-6 x 3-4um, non-amyloid, thin-walled, hyaline (Fig. 1/10, p. 10); print white. Cuticle of closely woven hyphae. HABITAT : attached to litter in mixed broad-leaved forest, Belmont, Wellington, 20.6.1960, G. M. Taylor (type) & Waikanae, 6.8.1960 [JAC] No cystidia. Spores sticking in tetrads. Pileal surface a clamped cutis, partially gelatinised. The material consist of fragments of one sporocarp. Spores (including apiculus) length=4.6–6.0µm (µ=5.1, σ=0.45), width=2.5–3.1µm (µ=2.9, σ=0.16), Q=1.6–2.2µm (µ=1.80, σ=0.18), n=18. The spores seem very variable in size and shape but there are few visible. This material agrees in all but 'orange at centre' with more recent collections from both indigenous and modified habitats, identified as C. metachroa. On the other hand it also agrees with my C. 'Ohakune'. Further collections of material from the type locality may indicate otherwise.
Collybia bubalina G. Stev. 1964
[GS]Pileus 3-7 cm. diam., pale buff, plane with a down curved margin, matt; flesh thin, whitish. Gills sinuate, buff, moderately distant. Stipe 4-6 X 0-5-1 cm., buff, striate, hollow, tough, tapering slightly to somewhat swollen base. Spores 5-5 X 2.5um, non-amyloid, thin-walled, hyaline (Fig. 1/18). Cuticle of appressed hyphae, mainly of large diam., 5-10um. Hymenophoral trama sub-regular, of large diam. hyphae. Slight sour smell. HABITAT: among litter under Nothqfagus, Spooner's Range, Nelson, 20.5.1956. [EH] This species is a typical Tricholoma. The cuticle is formed by slightly gelatinised, cylindrical, repent hyphae without clamp connections. Spores are elliptical to subcylindric, hyaline, neither amyloid nor dextrinoid, smooth, 4.5-5 X 2-2.5 um. Cystidia none. [JAC] all tissue spreading easily in KOH, The dried material does have the look of a Tricholoma. Cap an unclamped cutis. No sign of gelatinisation. Spores length=4.1–5.4µm (µ=4.6, σ=0.32), width=2.2–2.7µm (µ=2.4, σ=0.16), Q=1.7–2.1µm (µ=1.90, σ=0.10), n=20. Definitely no tissue amyloid or dextrinoid. The spores are very small and do not have the glassy look typical of Tricholoma. Nevertheless I agree with Horak this must be a (overlooked) Tricholoma.
Collybia incarnata G. Stev. 1964
K(M) 235260. Stevenson 1262. The material has dried yellow. The spores exhibit great variation. The immature spores on the gill (attached to sterigma) and the stipe are long, mature spores on the gill are shortened but retraction nearly impossible to see, whilst the spores on the cap exhibit the usual form for Rhodocollybia with a dextrinoid retracted endospore and outer wall sometimes collapsing. The result is a great variation in possible spore measurements, as seen in the recent NZ collections. However, without doubt a Rhodocollybia.
Collybia readiae G. Stev. 1964
K(m) 235264, Stevenosn 1047. Basidia with siderophilous granules. Spores length=4.5–5.3µm (µ=4.9, σ=0.20), width=2.4–3.5µm (µ=2.8, σ=0.27), Q=1.5–2.2µm (µ=1.75, σ=0.18), n=28. Stipe smooth. Sub-pellis with inflated elements. Suprapellis an interwoven clamped cutis with occasional gloeoplerous hyphae. . This material agrees with Calocybe carenum, known from NZ in introduced habitats, and this was from the grounds of the Cawthron Institute in Nelson.
Collybia rimutaka G. Stev. 1964
[GS] Pileus 2-2.5 cm. diam., pale cinnamon, striate at margin, darker at centre, smooth, hygrophanous, plano-convex, broadly umbonate; flesh concolorous. Gills free, cream, shallow, crowded. Stipe 4 cm, x 3-4 mm., cinnamon, smooth, hollow, more or less equal. Spores 6 x • 3um., non-amyloid, thinrwalled, hyaline (Fig. 1/15, p. 10). Cuticle of woven hyphae HABITAT : in litter under mixed forest, Gollan's Valley, 2.1 10. 1948, Stevenson. [EH] Spores 4.5-6.5 X 2.5-3 um, neither amyloid nor dextrinoid, hyaline, smooth. Cuticle of irregular, broom-like cells, membranes encrusted with brown pigment, dextrinoid in Melzer's solution, clamp connections numerous. Cheilocystidia present. A very common species growing in all habitats in New Zealand. [JAC] No dextrinoid pigment on cap hyphae observed (but some brown encrusting pigment). No broom cells observed. The cap is not a broom/ramealis structure but more dryophila-like, ie.an interlocked matrix of hyphae with modified terminals but no multiple smaller lateral extensions. As I suspected this is identical to material I have tagged 'pororari'. spores length=4.9–6.5µm (µ=5.6, σ=0.37), width=2.6–3.5µm (µ=3.0, σ=0.25), Q=1.6–2.2µm (µ=1.89, σ=0.15), n=20. Note the spores are small. The swollen stem base in Stevenson's image is suggestive of a Rhodocollybia but tere are no dextrinoid spores present on cap/stem tissue, and the spores are small for NZ look-alike Rhodocollybia spp. A good Gymnopus. I believe this species was misidentified by mata et al as G. readii.
Crinipellis filiformis G. Stev. 1964
K(M) 122113, Stevenson 213. Dennis Desjardin's comments on this collection "The holotype specimen consists of one packet containing a leaf fragment with a few reddish brown, glabrous, wiry rhizomorphs; and a second packet containing one broken stipe plus one quarter of one pileus. As dried: Pileus 2 mm diam, disc with a small brown papilla, shaggy-hairy, cream-colored on the margin. Lamellae close, narrow, cream-colored. Stipe 8 × 0.5 mm, greyish brown, with cream-colored pubescence.Basidiospores 8.3–10.5 × 4.2–5.2 μm, xm 9.1 +- 0.7 x 4.7 +- 0.3um, Q = 1.7-2.2, Qm = 1.9 ; n = 12 spores per 1 collection, ellipsoid, smooth, hyaline, inamyloid, thinwalled. Hymenial elements not observable: no basidia, basidioles or cystidia seen. Pileipellis of tangled to subparallel and agglutinated, thick-walled hairs. Hairs > 300 x 2.2-3.5(-5.5)um, cylindrical to sinuous, gradually narrowed to an acute or subacute tip, hyaline, inamyloid or dextrinoid; walls smooth, 0.5-1.3 um thick; no secondary septa seen near the tips. Habitat: Fallen leaves. Known distribution: New Zealand. Notes: Data on hymenial cells were not obtainable because of the poor quality of the limited material in the holotype specimen. Features of the cheilocystidia are required for accurate taxonomic placement. Status: Crinipellis filiformis will remain an insufficiently known species of Crinipellis until more material becomes available for analysis." [JAC] This is a mixed collection with one packet containing a 'Rhizomarasmius' (no caps remaining) and the other with the small fragment of a Crinipellis. The Crinipellis is not associated with a leaf. It is unclear if Stevenson's description was based on the mixture, although it seems probable given the epithet, which does not apply to the Crinipellis in the packet. Cheilocystidia found and with short setula. Spores length=8.3–10.2µm (µ=9.3, σ=0.50), width=3.9–4.9µm (µ=4.4, σ=0.33), Q=1.8–2.4µm (µ=2.11, σ=0.16), n=20. The spores are slightly larger than Stevenson and Desjardin suggest. This material is consistent with C. substipitaria as a synonym. It is distingusihed from C. scabella by spore Q (=1.7), association with poaceae (noting fact that substrate of type of C. filiformis is debateable) and presence of cheilocystidia with setae (differing from all Euro species in that regard).
Crinipellis procera G. Stev. 1964
K(M) 122114, Stevenson 743. I can add nothing to the comprehensive notes and drawings of Desjardin
Crinipellis readiae G. Stev. 1964
[GS] Pileus 7-15 mm. diam., vinaceous russet, plane, thin, velvety fibrillose, somewhat striate. Gills adnexed, creamy to concolorous, thin, moderately crowded. Stipe 3-4 cm. x 1 mm., vinaceous russet covered with pale velvety pubescence. Spores 7-10 X 4um, non-amyloid, thin-walled. Cuticle of loosely woven, amyloid to pseudo-amyloid hyphae, with unbranched endings irregularly thickened, with clamp connections (Fig, 2/31, p. 37). HABITAT: in litter with basal mycelium binding dead leaves together, Puramahoi, 20.4.1955, Dorothy Read in Stevenson (type); & Kaingaroa, 12.3.1958, Stevenson. [EH] Spores comma-like, hyaline, neither amyloid nor dextrinoid smooth, 7.5-9 X 3.5-4 um.. Cheilocystidia numerous, fusoid, with prolonged neck or irregularly branched apically, hyaline, 25-40 X 5-10 um. Caulocystidia cylindrical, thin-walled, densely covering the upper part of the stipe. Cuticle a cutis of irregularly interwoven cylindrical hyphae, encrusted with brown pigment, clamp connections present. [Desjardin] The holotype specimen consists of about 2 very fragmented basidiomes in fair condition. As dried: Pileus striate, pruinose overall, reddish brown. Lamellae adnexed, subdistant with 2 series of lamellulae, broad, creamcoloured. Stipe 1 mm diam, pubescent, yellowish grey-brown. Basidiospores 8–9 × 3.8–4.5 μm [xm = 8.5 ± 0.3 × 4.1 ± 0.2 μm, Q = 1.8–2.3, Qm = 2.1 ± 0.2, n = 10 spores per 1 collection], ellipsoid, smooth, hyaline, inamyloid, thin-walled. Basidia clavate, 4-spored, clamped. Basidioles clavate. Pleurocystidia absent. Cheilocystidia scattered, lamellar edge fertile; 22–40 × 6.5–10 μm, irregularly clavate to lageniform or ventricose, mucronate or forked, projections obtuse, hyaline, inamyloid, thin-walled. Pileipellis a cutis of repent, subparallel, cylindrical hyphae 3–5 μm diam, non diverticulate, often with brown pigment incrustations. [JAC] cap hyphae clamped.Villose hyphae on stipe surface just an irregular tangle. No caulocystidia.Nothing to add to Desjardin. Mata's interpretation (and thus the first sequences of collections identified as this) are possibly correct. This material is the same as G. villosipes. G. readii sensu Mata (and GenBank) appears to be a misidentification of G. rimutaka.
Crinipellis roseola G. Stev. 1964
K(M)122116, Stevenson 961. Confirmed as Mycena stevesoniae.
Crinipellis substipitaria G. Stev. 1964
[GS] Pilew 5-9 mm. diam., fuscous, paler at margin, hemispherical becoming plane with a sharp umbo, covered with brown fibrillose scales. Gills free, creamy white, rather crowded. Stipe 1-3 cm. x 0.5 mm., brown, fibrillose, tough. Spores 8-9 x 6-7um, non-amyloid, thin-walled. Hymenophoral trama non-amyloid. Cheilocystidia and pleurocystidia fairly numerous, 25-30 x 51um, with branched tips. Cuticle with long unbranched hyphae, amyloid to pseudo-amyloid, 5um diam., with walls 2um thick (Fig. 2/29, p. 37). HABITAT: on fallen dead leaves, Lake Papaitonga, Levin, 27.10.I 947, Stevenson (type). [Desjardin] The holotype specimen consists of 5 intact or fragmented basidiomes in fair condition, one attached to a leaf. As dried: Pileus 3–4 mm diam., conical, radially fibrillose, pale brown. Lamellae subdistant to close, broad, cream-colored. Stipe 10–25 × 0.5 mm, shaggy, ochraceous; rhizomorphs absent. One Mycena basidiome is also in the collection. Basidiospores 8.6–10.5 × 6.4–7.4 (–7.7) μm, [xm = 9.5 ± 0.7 × 7.0 ± 0.4 μm, Q = 1.2– 1.5, Qm = 1.4 ± 0.1; n = 10 spores per 1 collection], broadly ovoid, smooth, hyaline, inamyloid, thin- to firm-walled. Basidia clavate, clamped. Basidioles broadly fusoid. Pleurocystidia absent. Cheilocystidia common, lamellar edge heteromorphous; main body 14– 23 × 4.5–6.5 μm, subcylindrical to clavate with numerous apical appendages; apical appendages 1.5–4 × 1.2–1.5 μm, rod-like, obtuse, seldom forked, hyaline, inamyloid, thin-walled. Pileipellis of tangled to subparallel, thick-walled hairs. Hairs > 300 × 3.8–5 μm, cylindrical to sinuous, narrowed near the apex to an obtuse tip, hyaline to yellowish brown, inamyloid to strongly dextrinoid; walls smooth, 0.5–2.5 μm thick. Stipitipellis with hairs like the pileipellis. Habitat: On fallen dead leaves. Known distribution: New Zealand. Notes: This represents a good species of Crinipellis, distinctive because of the very broad ovoid spores and the clavate-setulose cheilocystidia. [JAC] The packet says under Beilschmedia, which seems to be a common substrate for NZ Crinipellis. Cheilocystidia 23 x 10. Spores (including apiculus) length=7.4–9.2µm (µ=8.2, σ=0.51), width=3.1–4.1µm (µ=3.8, σ=0.26), Q=1.8–2.5µm (µ=2.18, σ=0.17), n=16. The material is immature and there are numerous spores amongst the lamella. Some are lightly pigmented and verrucose and belong to a hypho or slime mould. Some are smooth, hyaline and variable in size and probably belong to a heterobasidiomycete. Both Stevenson and Desjardin appear to have figured and measured these. The spores of the Crinipellis are few but are in accord with material of C. filiformis. This specimen, and that of original and recent material of C. filiformis, appear to represent the range of a single taxon, for which the name C. filiformis will stand, and this as a later synonym (p43 versus p42 of Stevenson).
Crinipellis vinacea G. Stev. 1964
[GS] Pileus 1-2.5 cm diam., vinaceous brown, plano-convex becoming broadly concave with a waved, striate, and somewhat grooved margin, finely fibrillose; flesh thin, vinaceous brown. Gills adnexed to adnate, pale vinaceous, moderately distant. Stipe 2-3 cm. X 1-2 mm., vinaceous above, blackish vinaceous towards base, flecked with fine fibrillose scales, tough, hollow. Spores 7-8 X 3-4um, non-amyloid, thin-walled; print white. Hymenophoral trama non-amyloid. Cuticle of loosely woven hyphae 5-8um diam., with clamp connections, and with irregular amyloid to pseudo-amyloid thickenings (Fig. 2/32, p. 37). [EH] Spores elliptical, hyaline, neither amyloid nor dextrinoid, smooth, 7—8.5 X 3.5-4um. Cheilocystidia numerous, fusoid or ampullaceous, thinwalled, 25-40 X 5-9 um. Caulocystidia similar. Cuticle consisting of irregularly interwoven, cylindrical, externally pigmented hyphae, sometimes branched at the tips, without any dermatocystidia or hair-like elements, clamp connections present. [Desjardin] The holotype specimen consists of two different species: About 10 basidiomes in total in fair condition, loose in the packet. Taxon 1: As dried: Pileus 7–15 mm diam., plano-convex, striate, appressedfibrillose, dark brown. Lamellae narrowly adnexed, subdistant with 2 series of lamellulae, narrow, greyish brown. Stipe up to 25 × 1 mm, pruinose, dark brown. Cheilocystidia simple, fusoid to clavate. Pileipellis a cutis of cylindrical hyphae with dark brown incrustations. Notes and Status: This dark brown, possibly vinaceous, species is the one reported by Horak (1971: 459, Fig. 27:342) and may represent what Stevenson had in mind for Crinipellis vinacea. If the appropriate basidiomes could be separated, this taxon should be transferred as Gymnopus vinacea (G. Stevenson) comb. prov. and belongs in Sect. Vestipedes. A formal transfer will not be made here. Taxon 2: As dried: Pileus 10–12 mm diam., plano-convex, non-striate or striatulate, glabrous, ochraceous. Lamellae adnexed, subdistant with 2 series of lamellulae, broad, cream- to clay-colored. Stipe 12–15 × 1 mm, glabrous, reddish brown. Basidiospores 9.3– 11.2 × 4.8–5.7 μm [xm = 10.3 ± 0.7 × 5.3 ± 0.3 μm, Q = 1.8–2.3, Qm = 2.0 ± 0.1, n = 10 spores per 1 collection], elongate-ellipsoid, smooth, hyaline, inamyloid, thin-walled. Cheilocystidia with main body 11–16 × 4–6.5 μm, subcylindrical to clavate with numerous apical diverticula; diverticula 1.5–5 × 1–2 μm, knob– like, hyaline, thin-walled. Pileipellis a Dryophila-structure of broad, short, branched cells with clavate terminal cells, hyaline or with brown plasmatic pigments Notes and Status: This second entity represents a species of Gymnopus (Pers.) Roussel in Sect. Levipedes. A formal transfer will not be made here. [JAC] I can add nothing to Desjardin's analysis. The caps can be separated but the stems not. It seems likley the pale one was on litter and the dark one on wood. It seems probable that the darker collection is the same as G. ceraceicola, hoever given the inextricably mixed nature of the type this is best considered a nom. conf.
Fayodia granulospora G. Stev. 1964
[GS] Pileus 1 -5-3 cm. diam., ochraceous fawn to greyish fawn, darker at centre, indistinctly striate, campanulate, smooth, dull; flesh thin, whitish, somewhat fragile. Gills adnate to sinuate, pale grey with white bloom, moderately distant, moderately thick. Stipe 2-4 cm. x 1-3 mm., ochraceous fawn darker at base, smooth, silky, hollow, brittle, often grooved. Spores 11 - 15 x 7-8um, non-amyloid or very weakly amyloid, strongly granular appearance, slightly thickened wall. Basidia with granulation. Cheilo- and pleurocystidia with or without granulation (Fig. 2/38, p. 37). Hymenophoral trama strongly pseudo-amyloid. Cuticle, pseudo-amyloid, cellular. Smell noticeable, unpleasant. HABITAT: in 'fairy-rings' in newly-made lawn, Karori, Wellington, 12.6.1949, Stevenson (type). [EH] After studying the type material we found no evidence why this fungus should be placed in Fayodia and suggest that this species should be transferred to Mycena. It is very likely that this agaric is an introduced species since it grew in "fairy-rings" in a newly made lawn near Wellington. [JAC] Collapsed spores on the gill do appear to be amyloid but I would agree that free spores don't look amyloid and have a granular appearance (in melzers), probably due to excess heating at some time. The collection appears to have been cooked or dried under really excessive heat, and that has massively disrupted/altered the micro features and the material has subsequently fragmented substantially. I could find just one random elements looking like Stevenson's 'cystidia'. It looks like the original micro-description was done after the excessive heating.In my opinion, based on limited available evidence, I'd say this was once Mycena olivaceomarginata. The stipe small hyphal pegs and cap surface structure at least have survived cooking.
Fayodia grisella G. Stev. & G.M. Taylor 1964
[GS] Pileus 7-9 mm. diam., grey, hemispherical with a shallow umbilicus and a down-rolled margin, subfibrillose, satiny; flesh very thin, fragile. Gills adnate to sinuate, pale grey with white margins, deep, moderately distant, long and short intercalated. Stipe 2-3 cm. x 1-2.5 mm., very pale fawn, smooth, silky; flesh solid, white, fragile. Spores subglobose, 4-5-7um diam., moderately thick-walled, outer layer hyaline inner layer strongly amyloid, contents or inner wall somewhat granular, apiculus prominent (Fig. 2/37, p. 37). Hymenophoral trama weakly pseudo-amyloid. Cheilocystidia thin-walled, 20-25 x 5-10um, more or less inflated. Cuticle of closely woven hyphae with thin-walled swollen dermatocystidia, 40-50 X 10-15um,, with grey contents. HABITAT : on fallen log in Nothofagus forest, Butterfly, Wellington, 8.4.1961, G. M. Taylor (type). [EH] Spores oval to almost round, hyaline, amyloid, smooth, 5-6.5 x 4-5.5 um (2-spored: 5.5-6 x 7um). Cheilocystidia present but not distinct. Caulocystidia club-shaped or somewhat irregular, thinwalled, distinctly coloured by a brown, plasmatic pigment. Cuticle of repent, cylindrical hyphae forming a cutis, with scattered clubshaped or fusoid, suberect dermatocystidia filled with a brown coloured cell sap, with clamp connections. [JAC] Singer considered this to be a young form of Hydropus dusenii. Cap with hydropoid vesciles with brown plasmatic content. Stem finely pruinose at apex with caulocystidia, like Egon's drawing of cap surface. There are spores of the type seen by Stevenson. In fact there seems to be 1-2-3-4 spored basidia with amyloid spores of a large range of shapes and sizes but all clearly associated with this Hydropus. The cheilocystidia are not as clear as Egon's drawing. Clitocybula/Hydropus seems a reasonable placement but no decision until generic boundaries are more clearly deliniated. There appear to be a number of similar greyish brown Gerronema/Hydropus/Clitocybula species in NZ and the species boundaries remain unclear.
Fayodia ochracea G. Stev. 1964
[GS] Mycena - small yellowish [text on card insert]. Pileus 2-10 mm. diam., ochraceous, hemispherical, sulcate striate at margins, velvety. Gills sinuately adnexed, greyish, moderately distant, long and short intercalated. Stipe 2-5 cm. x 0-5-1 mm., pale ochraceous above, light brown below, smooth with sparse hyphal fibrils at base. Spores 9-10 x 5 um, slightly thickened walls, with clear outer layer and amyloid inner layer either granular inner wall or granular contents. Hymenophoral trama ans tissue of pileus strongly pseudo-amyloid with some large cells, up to 50 x 30um. Cheilocystidia ornamented (Fig. 2/39, p. 37). HABITAT: singly in litter, Queen's Gardens, Nelson, 6.5.1957, Stevenson (type). [EH] Spores oval to elliptical, hyaline, weakly amyloid, smooth, 8.5-10.5 x 5-6um. Cheilocystidia numerous, fusoid, irregularly branched or broom-like, hyaline, thin-walled, 25-50 x 5—10um. Possibly introduced. [JAC] irregular fingers on apex of basidiolar-like cheilocystidia, or extensions from partially gelatinised ropes. Nothing like Stevenson's cystidia seen. EH figures closer, but not really like the material. Stem with small extensions and pseudoamyloid. Cap with fine surface diverticulae. 4 & 2 spored. Gill edge concolorous. The micro features are consistent with NZ material of M. olivaceomarginata. The edge colour fades in dried material. spores length=8.2–10.2µm (µ=9.2, σ=0.60), width=4.5–6.0µm (µ=5.3, σ=0.38), Q=1.6–1.9µm (µ=1.74, σ=0.09), n=20
Hohenbuehelia brunnea G. Stev. 1964
[GS] Pileus 1-2 cm. diam., fuscous, paler at margin, orbicular with margin exceeding gills, velvety fibrillose; laterally attached. Gills decurrent to point of attachment, ochraceous yellow, thick, shallow, very crowded. Spores 7 X 3-3.5um, non-amyloid. Metuloids 40 X 12um, pseudo-amyloid encrusted with crystals, extremely thick-walled, very numerous (Fig. 1/50, p. 10). Cuticle of loosely woven, more or less parallel hyphae with clamp connections, up to 5um diam., superficial hyphae dark coloured and some irregularly thickened. HABITAT: on fallen twigs, Otari, 29.7.1948, Stevenson (type). [JC] Pileipellis relatively smooth compared to previous types which all had at last some cap area with a dense tomentum. Gills not as crowded as H. podocarpinea. The pileipellis is thin, and with brown setose elements like some of my petalodes. Some of these crystal encrusted, but easily lost. Surface hyphae with brown zebroid encrustation. Gloeosphex cheilocystidia relatively few. Spores length=6.0–8.2µm (µ=7.1, σ=0.58), width=3.1–4.1µm (µ=3.6, σ=0.27), Q=1.7–2.4µm (µ=2.00, σ=0.23), n=22
Hohenbuehelia luteola G. Stev. 1964
[GS] Pileus 2-2-5 cm. diam., pale yellowish, orbicular, velvety; flesh white, soft. Gills shortly decurrent, pale yellow, moderately crowded. Stipe 4 X 3 mm., lateral, pale yellow, smooth to velvety. Spores 8-9 X 4.5-5 um, nonamyloid, thin-walled. Metuloids 45-50 X 15-20um, pseudo-amyloid, very thick-walled, with crystals, abundant on gill faces (Fig. 1/52, p. 10). HABITAT : on fallen wood, Waikanae, 1.1.1951, Stevenson (type). [JC] the cap appears polished, with fine even tomentum towards a pronounced stipe. Stipe with white hyphae and rhizoids. Lamellulae relatively few or absent compared to H. podocarpinea, nothofaginea, brunnea. Gill edge entire. Cap is much paler than previous specimens. Pileipellis a separable elastic pellicle. The surface layer is not darker, unlike previous species examined, and has abundant metuloid pilocystidia, usually without crystals. Also with gloeosphex cystidia on the surface. Clamped.Material heavily contaminated with penicillium spores. The gloeosphex cystidia on the pileus and lamellae have a distinctive morphology not seen on previous NZ types, like raisins. Spores length=6.9–8.8µm (µ=7.9, σ=0.53), width=3.8–5.8µm (µ=4.9, σ=0.54), Q=1.3–2.0µm (µ=1.64, σ=0.17), n=20, ellipsoid
Hohenbuehelia nothofaginea G. Stev. 1964
[GS] Pileus 2-4 X 1.5-3 cm dark greyish brown, fan-shaped to reniform becoming somewhat lobed, margin strongly down-rolled at first, densely fibrillose, sessile; flesh thin, white, tough. Gills decurrent to the thickened point of attachment, creamy to ochraceous, shallow, moderately thick, very crowded. Spores 6 X 3-3.5 um non-amyloid. Metuloids very thick-walled, pointed, with or without crystals, very abundant (Fig. 1/54, p. 10). Cuticle of loosely woven thin-walled hyphae 4-5um diam., with clamp connections; tomentum of unbranched similar hyphae containing pigment. HABITAT: on fallen dead Nothofagus, Rotoiti, Nelson, 6.6.1955, Stevenson (type). This species and the previously described one [H. podoccarpinea] seem closely related but distinct, and it is presumed that the host range of each is restricted. [JC] Note both the description and the specimen show a cap surface entirely fibrillose. The pileipellis is a gelatinised separable pellicle. In section the very top surface is dark brown and other hyphae hyaline. In a squash of the pellicle the brown hyphae have zebroid encrustation, some thick walled (possibly the tomentum which is thick-walled) and a few petalodes-form brown, acuminate thick walled pilocystidia, some crystal encrusted. No gloeopilocystidia seen. The gills are not crowded, conpared with H. podocarpinea, mostly smooth but patches minutely fimbriate. The metuloid cheilocystidia are smaller than the pleurocystidia. Spores length=6.0–8.3µm (µ=7.2, σ=0.65), width=3.3–4.2µm (µ=3.8, σ=0.22), Q=1.6–2.5µm (µ=1.91, σ=0.19), n=27. It is worth streesing that Stevenson description and the material, say greyish brown, not brown as in Horak's photo or my subsequent interpretation.
Hohenbuehelia parsonsiae G. Stev. 1964
[GS] Pileus 3-6 X 2-4 cm., deep reddish brown, spathulate with down-rolled margin, somewhat striate at first, smooth; flesh concolorous. Gills deeply decurrent, fawn to ochraceous, deep, moderately crowded. Stipe 0-5 X 0-5 cm., lateral, concolorous, solid, fleshy, uniting in groups. Spores; 7 X 5um, non-amyloid, thin-walled. Metuloids 50 X 15um, pseudo-amyloid, very thick walled, encrusted with crystals, very abundant on gill faces (Fig. 1/49, p . 10). Cuticle subregular, with occasional thick-walled hyphae with sharp pointed hyphal endings. HABITAT: in humus soil or on fallen wood, Levin, 25.7.1948, G. Parsons in Stevenson (type); Otari, 7.6.1958, Stevenson. [EH] = Hohenbuehelia petaloides (Fries) Schulzer. This species may be introduced as it is frequently found on ruderal places or in lawns. [JAC] Macromorphology does suggest H. petalodes/metuloidea, e.g. pileus (material fragmented) is polished chestbut brown. With rhizoids. GS drawing has this clearly as spathulate. Spathulate/fan-shaped is not a good character according to sequences. Pileipellis section with single dark band. Pilocystidia subuate, thick-walled. Consistent with H. metuloidea and provides an earleir name. Gloesphex cystidia not observed. Spores from lamella squash length=6.4–7.5µm (µ=7.0, σ=0.35), width=4.0–5.4µm (µ=4.6, σ=0.33), Q=1.3–1.7µm (µ=1.53, σ=0.11), n=20. Spores on cap minutely roughened? Must be something else.
Hohenbuehelia podocarpinea G. Stev. 1964
[GS] Pileus up to 5 x 4.5 cm., slate grey becoming tinged brown, orbicular becoming lobed, margin at first down-rolled becoming finally upturned, velvety, sessile; flesh firm, white. Gills decurrent to point of attachment, creamy white developing some ochre tints, rather thin, very crowded, dense metuloids appearing like fine white hairs. Spores 7-8 x 4um, non-amyloid, thin-walled. Metuloids up to 50 x 15um, pseudo-amyloid, very abundant, very thick-walled, pointed, with or without encrusting crystals (Fig. 1/5I, p. 10). Cuticle of loosely woven semi-gelatinized hyphae with conspicuous clamp connections, with a few irregularly thickened hyphal endings. HABITATo:n standing dead Podocarpus spicatus, Butterfly, 22.5.1949, Stevenson (type). [JC] Stevenson implied this is nearly the same as H. nothofaginea differeing in host. The dried material of this has a darker brown cap than H. nothofaginea and much more orange gills,. Some caps are smooth, others finely dark brown velvety, and some with a pale tomentum like H. nothofaginea and trstis. This is a substantial collection, and the individual fruitbodies are relatively large. No sign of basal rhizoids. Pileipellis tissue appears to be less gelatinised than either nothofaginea or tristis but is separable and has identical encrusted brown hyphae to nothofaginea, and a few thick walled dark brown pilocystidia (and a few hyaline). No pilo gloeosphex cystidia seen. The coarse and fine tomentum have the same micro structure. A number of the fruitbodies are infested with thick-walled minutely spiny spores of something else. Spoeres length=6.7–8.2µm (µ=7.2, σ=0.42), width=3.2–4.4µm (µ=3.7, σ=0.29), Q=1.7–2.2µm (µ=1.93, σ=0.15), n=20
Hohenbuehelia tristis G. Stev. 1964
[GS] Pileus 1-2 X 1-1.5 cm., buff to sordid, finely fibrillose, fan-shaped, sessile. Gills decurrent to point of attachment, creamy white, shallow, crowded. Spores 7 x 3um, non-amyloid, thin-walled. Metuloids 80-90 X 15-20 um, pseudo-amyloid, very thick-walled, encrusted with crystals, very abundant on gill-faces (Fig. 1/53, p. 10). Cuticle of loosely woven hyphae with clamp connections, covered by tufts of parallel thin-walled hyphae 3-8um diam., with conspicuous clamp connections. HABITAT: on fallen rotten wood, Levin, 27.10.1947, Stevenson (type). [EH] = Hohenbuehelia nothofaginea. [JAC] Greta indicated a relationship between H. nothofagnea and H. podocarpinea, assuming host specificity. It is interesting therefore that Horak synonimised this with H. nothofaginea (with dark greyish brown cap), but retained H. podocapinea. The pileipellis is a removeable elastic pellicle (treated in KOH). A cream tomentum on the cap is extensive compared to other NZ species (except nothofaginea) but the material is very sparse. There are no metuloid cystidia elements in the pileipellis, and just a few gloeosphex cystidia, mostly devoid of apical mucilage but some amorphously crystaline. A section through the pileipellis shows a slightly pigmented layer below the pellicle. The gills are not crowded, compared say to H. podocarpinea. The gill edge is minutely fimbriate, perhaps tending to serrulate. Spores length=6.4–7.8µm (µ=7.0, σ=0.46), width=3.1–4.2µm (µ=3.7, σ=0.32), Q=1.6–2.2µm (µ=1.90, σ=0.16), n=20.
Laccaria lilacina G. Stev. 1964
K(m)235261, Stevenson 924. The packets contain relatively large fruitbodies, much closer in appearance to L. violaceoniger than L. fibrillosa. The cap is milk-chocolate brown innately firbrillose/striate in the centre, with some squamules at cap edge. It does not have the dark brown/black central raised fibres of L. fibrillosa. Spores (excluding ornamentation and apiculus) length=6.6–9.0µm (µ=7.7, σ=0.61), width=7.0–8.1µm (µ=7.5, σ=0.33), Q=0.9–1.2µm (µ=1.03, σ=0.06), n=20, spines to 1.3um. No cystidia observed.
Laccaria masoniae G. Stev. 1964
K(M)235262, Stevenson 733. Rooting in moss under Nothofagus solnadrii, Silverstream, 19/7/1949. Folder with two packets, one with annotation slip from Greg Mueller, 26/3 1982. The collection does consist of only the longer fruitbodies depicted by Stevenson in her watercolour. 4-spored. Some evidence of vesicular cheilos, but not clearly distinguished from immature basidia. Spores (minus ornamentation) length=8.0–9.9µm (µ=8.8, σ=0.46), width=7.3–9.8µm (µ=8.4, σ=0.56), Q=0.9–1.2µm (µ=1.05, σ=0.06), n=27. Spines mostly 2-3um long.
Laccaria violaceonigra G. Stev. 1964
K(M)235259, Stevenson 506. The relative paucity of spores on the pileus, stipe and lamellae suggest this was an immature specimen, which is supported by recent collections with a bigger stature. The centre of the pileus is minutely scurfy/scabrous and black. Stipitipellis hyphae with small knob-lile extensions. Spores excluding spines and apiculus length=5.9–7.2µm (µ=6.4, σ=0.39), width=6.0–7.2µm (µ=6.5, σ=0.35), Q=0.9–1.1µm (µ=0.99, σ=0.06), n=20
Lachnella snaresensis W.B. Cooke 1969
[Hal Burdsall] Type. Basisiomes gregarious, nearly spherical, 200 – 300 µm diam., white, hirsute/pubescent. Surface hairs 125 – 200 × 9 – 12 µm, walls up to 4 µm thick, hyaline, covered with pale yellow granules, many dissolving or nearly disappearing in KOH, narrow lumen. Subiculum not distinct from the excipulum producing hairs. Subhymenium not differentiated. Basidia arising directly from the subicular tissue. Hyphae 2.5 – 4.0 µm diam, thin-walled, hyaline, smooth, with clamp connections at septa. Hymenium lacking cystidia, composed of basidia, 80 – 100 × 2.5 – 4.0 µm, clavate to utriform, hyaline, thin-walled, 4-sterigmate, sterigmata 18 – 20 µm long. Basidiospores globose to subglobose, 18- 22 x 15 – 18 µm diam, thin-walled, smooth, hyaline, not reacting to Melzer’s reagent.
Lentinellus cremeus G. Stev. 1964
[GS] Pileus 1.5-3.5 cm diam., creamy white to deep cream, orbicular to reniform, convex becoming depressed, margin down-rolled, matt to almost velvety; flesh white, firm, continuous with that of stipe. Gills adnexed to sinuate, creamy white, thin, crowded, margins lacerate. Stipe 1-2 x 0.2- 0.3 cm, excentric to lateral, creamy, fibrillose to velutinate, tapered downwards, swollen at base, tough, solid. Spores 3.5 x 2.5 μm, faintly amyloid (Fig. 42). Hymenophoral trama of broad hyphae, some 10 μm diam., thinwalled. Cuticle of closely woven thin-walled hyphae, 2-3 μm diam. [EH] It is difficult to comprehend why Stevenson placed this fungus, which is common in the New Zealand bush, in Lentinellus. All characters indicate an obvious relationship with Pleurocollybia, a genus not previously known from New Zealand. Spores roundish, hyaline, weakly amyloid, smooth, 2.5-3 X 2.5 um. [Miller] The type (K) has small, nonamyloid, subglobose, smooth spores 3.5 x 2.5 um. Basidia 13-15 x 3.5-4.0 um. clavate, 4-spored. thin-walled. The trama is nonamyloid, thin-walled and quite broad. [JAC] Cap hyphae glassy walled with nodulose excrescences, unclamped. No cystidia. Spores possibly briefly and faintly amyloid. Including apiculus length=4.2–5.0µm (µ=4.6, σ=0.26), width=3.0–4.0µm (µ=3.4, σ=0.23), Q=1.2–1.6µm (µ=1.38, σ=0.10), n=20. Does not posess siderophilous granules of either macro or oligo type. This does not have the spores of the similar Clitocybe albida which has ovoid spores and filiform cystidia on at least some gill, but also has obvious clamps and decurrent gills. The lack of clamps in this specimen is puzzling. Recent material identified as P. cremea is within the Lyophyllaceae and is an Ossicaulis sister to Ossicaulis lignatilis, and O. lachnopus and is a brown rotter. These characters fit with this type. However that recent material also shows siderophilous granules and clamps. The absence of granules and clamps leads me to conclude this is not the same as recent material under that name (which can now be found under Ossicaulis). It is worth noting the gills most certainly have a lacerate edge which is probably why Stevenson placed it in Lentinellus
Lentinus albovelutinus G. Stev. 1964
[GS] Pileus 4-8 cm. diam., plane with edge down-rolled, velvety fibrillose; flesh thin, pinkish. Gills adnate, white to pink tinted, thin, crowded, some forking, margins serrulate. Stipe 1 -5 cm. x 1 -5-3 mm., whitish, excentric to almost lateral, tough, some with rhizomorphs attached. Spores 7 x 4-4.5um, non-amyloid, thin-walled (Fig. 2/10, p. 37). Hymenophoral trama subregular. Cuticle of moderately loosely woven hyphae. HABITAT: on fallen rotting wood, Ohau River, Levin, 25.5.1952, Stevenson (type). [EH] = Rhodocybe albovelutina. There is no doubt that this species with pinkish, angular spores, 5.5-7 X 3.5-5 um., has to be transferred to Rhodocybe. [EH] The two laterally stipitate or eccentric New Zealand species of Rhodocybe [conchata] are readily distinguished by the shape and colour of the pileus and the presence or absence of pseudocystidia and clamp connections on cuticular hyphae. [Bandoni] Spores 5.5-8.5 X 4-5(-5.5) um, broadly ellipsoid in profile and face view and with a suprahilar depression in profile view, angular in profile view, undulate-pustulate or some almost smooth in all views, walls cyanophilic, inamyloid, pale yellowish to faintly pinkish tinted in mass in KOH. Basidia 16-21 x 5.5-7 um, 4-sterigmate, lacking cyanophilic bodies. Hymenial cystidia not differentiated. Lamellar trama of parallel hyphae, cylindric to inflated, 5-18 um in diam. Subhymenium of cylindric very loosely interwoven, somewhat gelatinized hyphae (i.e., many hyphae collapsed and refractive in KOH and hymenium easily separable from the trama). Pileal context of radially arranged hyphae, mostly inflated, 5.5-25 um in diam. Pileipellis a compact layer of repent, interwoven hyphae, nonincrusted, cylindric, 3-5.5, um, hyaline to pale cinnamon in KOH. Clamp connections present on hyphae of the pileipellis, pileal context and lamellar trama. Pileipellis a compact layer of repent, interwoven hyphae, nonincrusted, cylindric, 3-5.5, fjm, hyaline to pale cinnamon in KOH. Stipitipellis not studied. Clamp connections present on hyphae of the pileipellis, pileal context and lamellar trama. Lignicolous. May. Material studied: NEW ZEALAND: Ohau River, Levin, G. Stevenson 847 (Holotype, K). Though the color of the pileus was not mentioned in Stevenson's description, it is quite pallid in the single dried type specimen, being mostly "light buff" with "warm buff" or "ochraceus buff" spots. Rhodocybe albovelutina might be confused with R. fallax because of its similar pale color and tough stipe, but the eccentric attachment of the stipe, the serrulate lamellar edges, and lignicolous habitat are features which readily distinguish R. albovelutina from R. fallax. Rhodocybe albovelutina is also one of the few rhodocybes which possesses clamp connections on the hyphae of its basidiocarp. Rhodocybe fallax is a clampless species. Since some of the spores appear smooth under the oil immersion objective, care must be taken to observe a number of spores for ornamentation as well as angularity. The undulate-pustulate surface of the spores is readily recognized under the SEM. [EH 2008] The type material for Rhodocybe albovelutina is in very poor condition. Accordingly, no taxonomically relevant microscopic data (basidia, pseudocystidia, pileipellis) can be provided. In New Zealand, R. albovelutina is the larger (pileus up to 80 mm diam.) of the two laterally or eccentrically stipitate species of Rhodocybe. It is readily distinguished by the size, shape, and colour of the pileus and the absence of pseudocystidia and clamp connections on the hyphae of the pileipellis [JAC] spores indistinctly angled, not cyanophilous, clamps confirmed, gill edge not especially serrated, eccentric stipe confirmed but no wood residue at the stem base. Spores including apiculus length=5.6–7.8µm (µ=6.5, σ=0.57), width=3.5–5.0µm (µ=4.2, σ=0.37), Q=1.4–1.8µm (µ=1.56, σ=0.10), n=22
Lentinus delicatus G. Stev. 1964
[GS] Pileus 0.5-1 .75 cm. diam., white, floccose, plano-convex, thin. Gills adnate, white, moderately crowded, margins serrulate. Stipe 1-3 cm. x 1 mm., white, floccose. Spores 9-10 X 3-3.5um, non-amyloid, thin-walled (Fig. 2/11, p. 37). Hymenophoral trama of thin-walled hyphae with clamp connections, up to 10um diam.; very few thick-walled hyphae seen. Cuticle of loosely woven thin-walled hyphae about 10um diam., with clamp connections .HABITAT: in dense groups growing from a thick white mycelial mat on a fallen rotting log, Leith Saddle, Dunedin, 23.5.1953, Stevenson (type). [EH] = Marasmius delicatus (Stevenson) comb. nov. (Basionym: L. delicatus Stevenson, Kew Bull. 19: 32, 1964) Cuticle of hymeniform cells, walls smooth, not broom-like, clamp connections present. Spores 8-10 X 3-3.5 um, comma-like to fusoid, hyaline, smooth, neither amyloid nor dextrinoid. Cheilo- and caulocystidia present. [EH] An analysis of the holotype specimen revealed a suite of features that do not fitcomfortably in any described genus. The taxon is certainly not a Lentinus nor a Marasmius, but is more suggestive of a Resinomycena, albeit one with inamyloid basidiospores and non-dextrinoid tramal tissues. The following data are provided to supplement.those reported by Horak (1971a). Basidiospores 8-10 x 3.0-3.5 um, narrowly ellipsoid to fusoid, slightly curved, hyaline, inamyloid. Cheilocystidia abundant, lamellar edge sterile, 21-30 x 3-4 um, irregularly cylindrical, subclavate or subsinuous, thinwalled, hyaline. Pleurocystidi a absent. Pileipellis a trichodermium composed of erect, slightly interwoven hyphae with cylindrical to subclavate terminal cells; dendroid cells or diverticulate elements absent; hyphae cylindrical, non-gelatinous, non-incrusted, non-dextrinoid, clamped. Pi1eus tramal hyphae loosely interwoven, 4-10 um diam, cylindrical to irregular in outline but not inflated, otherwise similar to pileipellis hyphae. [JAC] Nothing to add to Egon's final description except that some spores, as expected, show a partial dextrinoid reaction, thus confirming that Rhodocollybia 'McCleans island' is the same species for which the correct combination will be Rhodocollybia delicata. These occasional spores are thick walled, often contracting at the apiculus, and in this case are more common on the gills than the cap. Normal spores length=7.2–8.9µm (µ=8.0, σ=0.46), width=2.8–4.0µm (µ=3.4, σ=0.27), Q=2.0–2.8µm (µ=2.40, σ=0.22), n=30
Lepista antipoda G. Stev. 1964
[GS] Pileus 6-13 cm. diam., pinkish buff to ochraceous buff, young specimens sometimes pale grey, waxy, hygrophanous, convex at first becoming undulate with a more or less depressed centre, margin remaining strongly downrolled; flesh white to buff, with a water-soaked layer above the gills. Gills sinuate to decurrent, buff, thin, rather crowded, with many short gills. Stipe 4-7 X 1-2 -5 cm., buff, with or without slight mauve tinge, solid or somewhat hollow, finely fibrillose. Spores 4.5-5 X 3um, non-amyloid, shallow nodulose, thin-walled (Fig. 1/12, p. 10). Strong sour smell. [Bandoni] spores 5-6 x 3.5-4 um, ellipsoid in profile and face view, round in polar view, verruculose, verrucae cyanophilic, inamyloid; basidia lacking cyanophilic bodies, 4-sterigmate; clamp connections present. This is not a species of Rhodocybe, but should be placed in Clitocybe section Verruculosae. [EH] Basidiospores 4.5–6 × 3–4 um, ovoid, weakly rugulose, thin-walled, inamyloid. Basidia 24–30 × 4–6 um, cylindrical to slender clavate, 4-spored, clampless. Cheilocystidia (Pseudocystidia) 35–45 × 3–5 um, scattered, cylindrical, towards occasionally with irregular, lobed projections, thin-walled, hyaline, refractive content absent. Caulocystidia in shape and size like cheilocystidia, often fasciculate. Pileipellis a cutis composed of short-celled, cylindrical, irregularly interwoven hyphae, 2–4(–5) um diam., terminal cells not distinctive, non-gelatinized walls thin, in KOH encrusted with yellow-brown pigment. Oleiferous hyphae absent. Clamp connections absent. [JAC] Clamps connections not observed on any tissue. Spore ornamentation is not cyanophilous but it does consist of verrucae rather than surface rugulation. length=4.5–5.6µm (µ=5.1, σ=0.24), width=3.2–3.9µm (µ=3.5, σ=0.19), Q=1.3–1.7µm (µ=1.48, σ=0.08), n=32. No cystidia observed. The stipe of the dried material is not attenuating towards the base. The growth in rough grass and wai-iti domain suggests this is an introduction. It has the spores of a Lepista but the failure to find clamps is problematic.
Lepista muritai G. Stev. 1964
[GS] Pileus 15–40 mm, light fuscous darker at centre, smooth, convex at first becoming broadly concave, margin strongly down-rolled. Lamellae adnexed or adnate, thin, crowded, sordid pink. Stipe 10–15 × 2–3 mm, slightly tapering towards base, fuscous, striate, solid, rather tough. Context fawn with water soaked layer above the gills, continuous with that of cap. Odour strong, sour. Taste not recorded. Spore print pale sordid pink. Basidiospores 6–8 × 3 um, slightly thickened walls, shallow nodulose, non-amyloid. Pileipellis of closely woven hyphae faintly pseudo-amyloid. [EH] The type material is in very poor condition and accordingly the taxonomic position for this agaric remains doubtful. Baroni (1981) proposed to relegate Rhodocybe muritai to Clitocybe. The actual identity of this taxon can be resolved only with fresh material. Cuticle consisting of cylindrical, not gelatinised, clamp connection bearing hyphae, forming a cutis, interwoven with oleiferous vessels.Spores rough to minutely corrugated-angular, pinkish, oval, 6-7.5 X 3.5-4 um. Cystidia none.[Baroni] Spores 5-7 x 3.5-5 um, ellipsoid in profile and face view, round in polar view, verrucose, verrucae cyanophilic, inamyloid. Basidia 4-sterigmate, lacking cyanophilic bodies. Clamp connections present on hyphae of lamellar trama and hymenial elements. Observations.-As pointed out earlier (Baroni, 1981), both C. antipoda and C. muritai have basidiospores that are not angular in polar view and the basidiospores possess distinct cyanophilic verrucae. The basidiospores of Rhodocybe species are consistently angular in polar view and possess a characteristic undulate- pustulate ornamentation rather than discrete verrucae. In addition, the spore walls of Rhodocybe species are evenly cyanophilic, while in these Clitocybes only the verrucae are cyanophilic. [JAC] fully agree with Baroni this is a Lepista and not Rhodocybe. Spores are patchily cyanophilous. Excluding apiculus length=5.7–7.1µm (µ=6.4, σ=0.36), width=3.6–4.4µm (µ=4.0, σ=0.23), Q=1.4–1.8µm (µ=1.60, σ=0.12), n=20. Clamp conections confirmed. Cheilocystidia absent. All characters of the types, and sequenced recent collections with identical morphology, say this is Lepista luscina (the L. panaeolus complex).
Lepista piperita G. Stev. 1964
[GS] Pileus 4-8 cm. diam., buff to sordid pink, matt, convex at first with centre slightly or strongly depressed, often becoming broadly concave with age, margin strongly down-rolled; flesh concolorous, with a water soaked layer above the gills. Gills decurrent, pale sordid pink, moderately crowded, long and short intercalated. Stipe 3-4 x 1-1.5 cm., concolorous, fibrillose to velvety, solid. Spores 7-8 X 5-5.5um, non-amyloid, shallow nodulose (Fig. 1/11, p. 10).. Taste and smell mildly peppery when fresh, smell strongly peppery when drying. HABITAT: under exotic and indigenous trees, Brooklyn, 6.5.1947, Naomi Dodds; Hokio, 8.6.1948, G. Parsons; Wellington Botanic Garden, 2.6.1949, Stevenson (type); Nelson, 9.6.1955 & 20.6.1956, D. Read; Nelson, 7.5.1957, E. Kidson. [EH] Spore print pink. Basidiospores 7–10 × 5–6 um, ovoid to elliptical, weakly nodulose or rugulose, inamyloid. Basidia 30–35 × 6–7 um, cylindrical to slender clavate, 4-spored, clampless. Cheilocystidia (Pseudocystidia) scattered or absent, cylindrical, hyaline, refractive content absent. aulocystidia like cheilocystidia, often fasciculate. Pileipellis a cutis composed of cylindrical, short-celled hyphae, terminal cells not distinctive, nongelatinized walls thin, in KOH minutely encrusted with pale brown pigment. Oleiferous hyphae absent. Clamp connections absent. NOTES: This species with medium-sized to large basidiomes (pileus up to 130 mm diam.) is kept in Rhodocybe because of its broadly adnate or shortly decurrent lamellae, pink spore print, farinaceous taste, short-celled pileipellis hyphae with encrusting pigment, and clampless septa. In the field Rhodocybe piperita can readily be mistakenfor R. antipoda (p. 88), R. multilamellata (p. 86), or even Hebeloma sp. However, R.piperita is distinctly separated by the size of the basidiospores [JAC] R. (Lepista) antipoda 4.5–6 × 3–4, R. multilamellata 3.5–4 × 3.5–4, R. dingleyae 4.5–5.5 × 3.5–4, R. Spores of type from cap, minus apiculus: length=5.8–8.0µm (µ=6.7, σ=0.53), width=4.2–5.3µm (µ=4.8, σ=0.32), Q=1.3–1.7µm (µ=1.42, σ=0.11), n=30. They sometimes settle on sort-axis, or spores are variously shaped. The 86% range would be 5.9-7.5 x 4.3-5.3 so both Stevenson & Horak spore measurements are too large and yet the character is used as a separator by Horak. The specimen does not posess cheilocystidia. It is a good Rhodocybe but R. multilamellata requires examination.
Leucopaxillus ardesiacus G. Stev. & G.M. Taylor 1964
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Leucopaxillus otagoensis G. Stev. 1964
[GS] Pileus 2-4 cm. diam., ochraceous salmon, infundibuliform with downrolled margin, smooth, silky; flesh whitish. Gills decurrent, pale ochraceous, shallow, rather crowded, repeatedly forking. Stipe 1-3 cm. x 3-4 mm., pale ochraceous salmon, smooth to velvety with a weft of hyphae at the base, solid, fleshy. Spores 6-8 X 3-4um, amyloid (Fig. 1/39, p. 10). HABITAT: in forest soil, Woodside, Dunedin, 1.7.1953, M. Morrison in Stevenson (type). [EH] = Clitocybe clitocyboides (Cooke and Massee) Pegler, 1965. It is difficult to see why this fungus was originally described in Leucopaxillus for apart from the decurrent gills, it has nothing in common with that genus. C. clitocyboides closely resembles C. hydrogramma (Fries) Singer even to the distinct chlamydospores. [JAC] Spores inamyloid. Cap vesicles typical of Singerocybe clitocyboides are confirmed present. Without doubt this species. Spores from gill length=6.1–8.4µm (µ=7.5, σ=0.67), width=3.2–4.7µm (µ=4.1, σ=0.34), Q=1.4–2.1µm (µ=1.83, σ=0.17), n=20
Leucopaxillus waiporiensis G. Stev. 1964
[GS] Pileus 1-2 cm. diam., ochraceous buff, plane to concave with a downrolled margin, matt; flesh ochraceous buff. Gills decurrent, ochraceous buff, thick, shallow, moderately distant, forking. Stipe 1-1 -5 cm. x 1-2 mm., ochraceous buff, pruinose, solid, fleshy. Spores 10-11 x 4-5um strongly amyloid, moderately thin-walled (Fig. 1/38, p. 10). Hymenophoral trama subregular, hyphae up to 5um diam.; basidia 20-25 X 5-8um. Cuticle of almost parallel hyphae up to 5um diam. with clamp connections. HABITAT: amongst tussock grasses, Waipori, 31.5.1953, Stevenson (type). [EH] Spores subfusoid, amyloid, hyaline, smooth, 9.5-12 X 3.5-4.5 um. Cystidia none. Cuticle a cutis consisting of regularly arranged, cylindrical, repent, clamp-bearing hyphae, encrusted with brownish pigment. [JAC] stem base would indicate this was on soil (in indigenous grassland) and not decaying culms or wood. The spores are very amyloid, and smooth, thin-walled and collapsing, like some Mycena, but without dextrinoid gill trama. Gills are in series of 2 and do fork. Cantharelulla is a reasonable placement until more collections found, but possibly Pseudoomphalina. Lodge et al exluded C. waiporiensis from Cantharellula 'on basis of morphology' but without explanation. Certainly not something I have seen in NZ. Gill tissue exuding oil drops into melzers. 4-spored.Cap and unclamped cutis, without pigment. Spores length=9.1–11.5µm (µ=10.2, σ=0.73), width=3.8–4.9µm (µ=4.2, σ=0.31), Q=2.0–2.8µm (µ=2.42, σ=0.20), n=22. Perhaps related to Mycena 'Kennedy's Bush' - Atheniellaceae
Marasmiellus omphaloides G. Stev. 1964
[GS] Pileus 11-17 mm. diam., dull white, thin, dry, hemispherical at first becoming plano-concave, somewhat fluted at margin. Gills adnate-decurrent, creamy white, distant, occasionally forked and with folds between. Stipe 2 cm. x 1 mm., tapering downwards, cream immediately under the gills, fawn to purple brown below, solid, tough. Spores 11-12 X 4-4.5um, non-amyloid, thin-walled. Hymenophoral trama non-amyloid. Cuticle of woven repent non-amyloid hyphae with clamp connections, with sparse superficial dermatocystidia which are hair-like, amyloid and thick-walled. (Fig. 2/14, P- 37) [EH] This species belongs to a group of apparently related Marasmiellus like fungi known from New Zealand which possess subamygdaliform, smooth spores and long, thick-walled, yellow-brown, hair-like dermatocystidia in the cuticle. To our knowledge there is no existing genus where these fungi could be adequately accommodated.[JAC] non Marasmiellus omphalodes (Berk & Curt.) Singer (twice). This material attacked by an Aspergillus. The gills have dried yellow/orange like some Campanellus. No sign of sterile gill edge. The cap appears minutely felty. Stipe with indistinct macro-visible cystidia. Stem arising from a superficial slightly enlarged base on wood with fine indistinct brown bristles. Pilleipellis with isolated clusters of yellow, thick-walled, fragile/fracturing hairs, associated with shorter, nearly vesiculose, and clamped elements (hydropoid?). Stipe with similar hyaline hairs (and numerous allantoid spores of a tremellaceous fungus). Spores somewhat collapsed. No cheilocystidia. No tissue amyloid or dextrinoid. Material infested with globose echinulate spores of the Aspergillus. Stipitipellis thick-walled, with swollen septa, clamps not observed. 4-spored basidia observed (mostly collapsed) but some evidence of 2-spored given range in spore size. No clamps observed in pileipellis or hymenium but tissue highly disorganised. Spores length=10.8–14.6µm (µ=12.8, σ=0.96), width=4.5–6.2µm (µ=5.4, σ=0.40), Q=2.0–2.9µm (µ=2.38, σ=0.20), n=25. Note that M. candidus ss NZ (marasmiaceae) has hair-like pileocystdia, but not yellow and not thick walled. M. Mt Fyffe (porotheliaceae) has thick walled pileocystidia but they are hyaline and present also as cheilocystidia. Previous idents of M. omphalodes (PDD 95810, PDD 87725, lyophyllaceae ) are now questionable because they do not have yellow pilocystidia and posess cheilocystidia. If hydropid then closer to M. Mt fyffe, but that with clear cheilocystidia.
Marasmius curraniae G. Stev. 1964
K(M) 235258, Stevenson 1247. There is no doubt about the modern interpretation of this species as a Mycetinis.
Marasmius druceae G. Stev. 1964
[GS] Pileus 1-4.5 Cm- diam pale testaceous, darker at centre, becoming somewhat striate and grooved at margins, plano-convex to plane with a waved margin, velvety; flesh pinkish, tough. Gills adnexed, moderately distant, pinkish fawn, paler at serrulate margins. Stipe 2-4 cm. X 2-4 mm., pale pinkish-buff, velvety, hollow, moderately tough. Spores8 X 4um non-amyloid, thin-walled (Fig. 2/24, p. 37); print white. Cuticle cellular of a faintly pseudo-amyloid palisade overlying woven pseudo-amyloid hyphae 5-8um, diam. HABITAT: on old Cyathea medullaris stump, Wellington Botanic Garden, 26.4.1949, Stevenson (type); on Nothofagus litter, Silverstream, 21.4.1958, H. Druce. [EH] Cuticle of interwoven, cylindrical, partially gelatinised hyphae with clamp connections. Spores comma-like, hyaline, neither amyloid nor dextrinoid, smooth, 7.5-9 X 3.5-4 um Cystidia none. [JAC] stem is pruinose along entire length, stronger at apex and base. The cap has deposits of spores with a partial dextrinoid reaction and some thick-walled, typical of Rhodocollybia (cf JAC12478) and R. purpurata. The latter we know from sequencing has a broad morphology and I believe that is an earlier name, although it posible this represents one of the undescribed Rhodocollybia species. The synonymy with R. purpurata is also supported by at least one of Horak's collections under the name C. drucei which is R. purpurata although that may be a misidentification. Cap a hyaline cutis. Hyphae appear to have thin extra-cellular zebroid hyaline encrustation. Clamps probably present but not seen clearly. Spores length=6.0–7.8µm (µ=7.0, σ=0.56), width=2.8–4.2µm (µ=3.5, σ=0.38), Q=1.7–2.5µm (µ=1.99, σ=0.21), n=20
Marasmius kanukaneus G. Stev. 1964
K(m)235254. Stevenson 914. The pielipellis broom cells are brown, not dextrinoid. Spores length=6.3–7.6µm (µ=7.0, σ=0.43), width=3.2–4.1µm (µ=3.7, σ=0.27), Q=1.6–2.2µm (µ=1.92, σ=0.16), n=15. There are some thin fragments of rhizoids in the packets which arise independently from the stems on the leaves. The spores are broader than Horak suggests, and thus closer to M. masonii. Modern collections indicate this is a relative of G. androsaceus and a Gymnopus.
Marasmius kidsoniae G. Stev. 1964
[GS]Pileus 1-3 cm. diam., fawn, plano-convex with a sharp umbo, grooved, margin waved, velvety. Gills adnate, moderately distant, whitish. Stipe 2-4 cm. x 2 mm., vinaceous grey darker towards base which is slightly swollen and to which rhizomorphs are attached, fibrillose striate, tough, hollow lined with white silky fibrils; flesh vinaceous. Spores 8-10 X 4-5um, nonamyloid, thin-walled (Fig. 2/23, p. 37); print white. Hymenophoral trama of hyphae 5um diam., with clamp connections. Cuticle of similar hyphae, weakly pseudo-amyloid, with palisade-like hyphal endings. HABITAT: on Photinia litter, grounds of Gawthorn Institute, Nelson, 26.4.1957, E. B. Kidson in Stevenson (type). [EH] This species was originally found in lawns under Photinia, an introduced rosaceous plant. We are inclined to consider C. kidsonii an introduced fungus as well. [JAC] the fruitbodies are clearly attached to wood, not leaf litter. The cap contains oleiferous hyphae. Spores length=8.4–11.6µm (µ=9.9, σ=0.79), width=4.1–5.3µm (µ=4.6, σ=0.33), Q=1.9–2.6µm (µ=2.14, σ=0.14), n=20. 4-spored hyphae clamped. This is a good Gymnopus and appears to be identical to G. subpruinosus, known from both native and exotic habitats in NZ.
Marasmius masoniae G. Stev. 1964
K(m) 235255 Stevenson 959. The description in Horak and Desjardin is taken from the notes assembled by Desjardin and accompanying the packet. The material has no rhizomorph remnants and so not M. kanukaneus. There are no cheilocystidia other than a few patches near the lamellar perimeiter which are an extension of the pileipellis ornamentation. I disagree there are scattered cystidia. I could find no mature spores, and relatively few immature spores. The stipitipellis is not dissimilar to M. gelatinospies. Unfortunately there isn't enough evidence to decide one way or the other but I strongly suspect this is the same as M. gelatinosipes and was collected in dry weather. Other similar specimens have sequences the same as putative M gelatinosipes. If so then obviosuly M. masoniae would provide the earlier name. However, given the uncertainty and the distinctive stem of M. gelatinospies in wet weather, it seems prudento to accept that name and treat this as a nom. dub. unless future sequences of recent collections confiorming to the Horak & Desjardin description indicate otherwise.
Marasmius otagensis G. Stev. 1964
K(M)235243. Stevenson 923, Woodside, 1/7/1953. The specimen micro-structure is hard to reconcile with Horak's drawings. The subpellis consist of extremely thick-walled hyaline hyphae with a narrow lumen and broad clamps. The central pellis of relatively few hymeniderm cells with pale brown plasmatic content but without ornamentation of any kind. The collection has been split into two packets and the caps in both packets show the same structure. The lamellar edge of parallel hyphae with perhaps occasional hymeniform cells similar to the cap, without ornamentation. 4-spored and sterigma conspicuous and curved. The specimen is covered in spores of a Laccaria. Either Egon was examining a different specimen, or in preparing a squash the Laccaria spores have 'integrated' into the tissue and the drawing indicates some license in drawing connecting tissues. None of the cystidia have clear diverticulae. The hyaline inamyloid spores measure 9.0µm (µ=7.7, σ=0.51), width=2.8–3.7µm (µ=3.2, σ=0.27), Q=2.2–2.8µm (µ=2.39, σ=0.17), n=20. Horak's measurement of the spores does not agree with the type. My interpretaion of this species is verified.
Mycena conicola G. Stev. 1964
K(M)235193. Stevenson 1141 on falllen cones of Picea, Cawthron, Nelson, 20/5/2956. Regarding M. conicola it is useful to refer to the comments of Grgurinovich in the Mycenas of SE Australia; "Stevenson (1964) described M. conicola G. Stev. from New Zealand. Horak (1971) recorded that this species approaches M. flos-niveum Kuhner, a species belonging in Section Mycena. Mycena flos-niveum has clavate cheilocystidia that are 'covered with fairly few, unevenly spaced, usually rather coarse, simple to branched, straight to curved excrescences' (Maas Geesteranus 198.5a, 1992b). Horak's drawings (1971: Fig. 4 (68)) show M. conicola with clavate to sphaeropedunculate cheilocystidia covered with abundant evenly spaced short cylindrical excrescences. Mycena conicola clearly belongs in Section Filipedes and not Section Mycena. Like M. austrofilopes, M. conicola has two-spored basidia. The former species can be distinguished by its moderately close to close lamellae, its stipe that has strigose hairs towards the base rather than 'spreading hyphal hairs' (Stevenson 1964), its larger basidiospores (7.3- 13.5 x 4.3-7.1 um for var. austrofilopes, compared with 10-12 X 4—5 um for M. conicola (Stevenson 1964)), the absence of pleurocystidia, and its habitat on litter under species of Eucalyptus rather than on fallen cones of spruce.". As a consequence, and given that both M. austrofilopes and M. filopes occur in New Zealand in both native and exotic habitats, the issue is reduced to ascertaining which of these species M. conicola is. In this material there are no pleurocystidia and the cheilocystidia measure to 30 x 15um and spores length=9.0–11.8µm (µ=10.0, σ=0.69), width=3.8–5.4µm (µ=4.7, σ=0.40), Q=1.7–2.5µm (µ=2.16, σ=0.19), n=22. Number of sterigma not seen due to degradation. A mount does show some conspicuoulsy larger spores so 2 & 4 spored. Smaller (abundant) spore size length=9.0–10.9µm (µ=9.9, σ=0.51), width=3.8–5.3µm (µ=4.6, σ=0.38), Q=1.7–2.5µm (µ=2.15, σ=0.19), n=20. The evidence suggests this is M. austrofilopes rather than M. filopes. None of the characters quoted by Grgurinovich for separation are adequate.
Mycena fuscovinacea G. Stev. 1964
[GS] Pileus 2.5-5 cm. diam., deep vinaceous brown, somewhat blotchy, more or less plane becoming somewhat waved at margin, moist, smooth; flesh buff, thin. Gills free or adnexed, pale vinaceous with creamy margins, deep, distant, rather thick, many with ribs between. Stipe 5-8 cm. x 3-8 mm., pale vinaceous, larger stipites twisted and striate, hollow, fragile, smooth, with creamy weft of hyphae at base. Spores 8-9 x 5-6um, amyloid, thin-walled; print white. Hymenophoral trama and tissue of pileus strongly pseudo-amyloid. Cheilocystidia 20-40 x 8 - 10 um , abundant (Fig. 2 151, p. 37). Smell faint, earthy. Drying dark purplish colour. HABITATin litter round standing podocarp stump, Waikanae, 15.5.1949, Stevenson (type); & in litter under exotic trees, Cawthron grounds, Nelson, 14.6.I 956, Dorothy Read. [JAC] Another Stevenson specimen that has undergone excessive heating and has then broken into tiny fragments. Lamellae with strong basal interveining. No cap or stipe ornamentation. Lamellar edge forming an entangle mass of thin hyphae in parts, perhaps originally partially gelatinised, with occasional bundles of cylindrical cheilocystidia. No cystidia looking anything like Stevenson's drawing The gill edge is noticeably less pseudoamyloid than the lamella trama. 4 spored. length=6.2–8.3µm (µ=7.2, σ=0.52), width=3.8–4.8µm (µ=4.3, σ=0.26), Q=1.5–2.0µm (µ=1.70, σ=0.13), n=24. As I suspected, this is the same my M. whakapapa, and the cheilocystidia are not as originally described.
Mycena hygrophora G. Stev. 1964
[GS] Pileus 1 .5 - 3.5 cm. diam., fuscous to greyish brown, moist and striate at margin, drying fawn to greyish fawn, carnpanulate becoming broadly conical or plane with a broad umbo; flesh thin, fawn. Gills free, white becoming greyish, moderately distant, deep. Stipe 3.5-7 cm; x 2-3 mm fawn, translucent, hollow, fragile, swollen at base. Spores 10-11 x 6-7um amyloid, thin-walled; print white. Hymenophoral trama pseudo-amyloid. Cheilocystidia 30-40 x 10um pin-head and awl-shaped (Fig. 2/52, p. 37). HABITAT: on timber of bridge, Otari, 11.5.1949, Stevenson (type). [EH] From the poor type material we recovered a few spores which correspond fairly well with the data and observations given by Stevenson. As the structure of the cuticle could not be studied the taxonomic position of this species must remain doubtful. [JAC] Material looks like its has been dried badly - cooked. Stipe with small diverticulae. Epicutis of thick walled glassy partially gelatinised hyphae without diverticulae. 2 and 4 -spored. length=8.9–11.4µm (µ=9.6, σ=0.84), width=5.6–6.8µm (µ=6.1, σ=0.48), Q=1.3–1.9µm (µ=1.59, σ=0.19), n=7. There is some evidence to suggest a few lecythiform cheilocystidia, but hard to say when the material is so badly degraded. Possibly conspecific with M. 'Ahurriri' or 'Barracouta' or even 'Rangitaiki' but insufficient evidence to distinguish. This name remains a nomen dubium.
Mycena miniata G. Stev. 1964
material not examined - too fragmentary and clearly is the same collected under the nom. nov. M. ura. It does have red strigose hairs at base.
Mycena minirubra G. Stev. & G.M. Taylor 1964
[GS] Pileus 0.5-1 mm. diam., crimson, hemispheric sulcate with 10-16 grooves; flesh thin, red. Gills decurrent, apricot, distant, shallow, occasionally forking, with crimson marginal vesicles. Stipe 3-5 x 0.1-0.5 mm., crimson, smooth, with white basal disc. Spores 7-10 x 3-4um, amyloid, tear-shaped (Fig. 2/41, p. 37). Cheilocystidia 40 x 5-8um, flask-shaped to pin-head, with red pigment dissolving in NH4OH. HABITAT : on fallen leaves of Elaeocarpus dentatus, Wellington Botanic Garden, 4.5.1961, G. M. Taylor (type). [Geesteranus] Mycena minirubra ... stated to have red edges to the lamellae. ... was described as having a very small pileus (0.5-1 mm diam.) and "apricot" lamellae. This meagre information necessitates reinvestigation of the type should it have to be compared with M. viscidocruenta. [JAC] The holotype now consists of just 2 stem fragments and cap. The remnants of the basal attachment pad are evident. It forms a pink/red strigose pad. There is one partial cap and one full cap remaining. There is no sign that the gills were apricot or had a red edge, but it's possible. Cap surface hyphae smooth, some thick walled, clamped, not pseudoamyloid, barrel shaped cells below (not a pseudoamlyloid hypoderm like a typical mycena). Not gelatinised. 4-spored. With cheilocystidia. With irregular hair-like caulocystidia with pale grey plasmatic content (amyloid?). Spores distinctively acicular. Mainly 4 but some 2-spored present. Cheilocystidia distinct.Spores length=7.6–10.6µm (µ=8.7, σ=0.72), width=3.6–4.3µm (µ=3.9, σ=0.22), Q=1.8–2.7µm (µ=2.22, σ=0.22), n=20. There can be no doubt this is Cruentomyces viscidocruenta, and thus is the first recorded material in NZ by a long margin.
Mycena miriamae G. Stev. 1964
[GS] Pileus 1.5-4 cm. diam., vinaceous brown, striate at edge, broadly conical umbonate, some with a shallow umbilicus on the umbo, smooth, moist; flesh thin, white, fragile. Gills adnexed, vinaceous grey with white margins, moderately crowded. Stipe 3-5 cm. x 2-3 mm., pale fawn above to vinaceous brown at base, silky, smooth, hollow, fragile. Spores 10 x 6-8um, amyloid, thin-walled. Hymenophoral trama and tissue of pileus strongly pseudo-amyloid, both with some hyphae 10um diam., and with cells of large diameter. Cheilocystidia hair-shaped or pin-head, set in a more or less gelatinized gill-margin (Fig. 2/50, p. 37). HABITAT : in soil close to wooden edging of path near Pinus plantation, Brooklyn, Wellington, 27.5.1958, Miriam Aicken in Stevenson (type). [JAC] exact locality was Brooklyn, Laura Ave, board on path edge near Pinus (not soil), although stem bases are enlarged and encrusted with gravel, and strigose. That will be here 2657471, 5988267 in Wellington. Cutis of broad hyphae, little differentiated from the hypoderm of pseudoamyloid cells. Hyphae smooth, without ornamentation, clamped. Stipe diverticulae at (at very apex only) of small fingers. Lamellae adnate, without decurrent notch. Lamellar egde not gelatinised, not with noriceably different colouration in dried material. Trama contains oleiferous, potentially lactiferous hyphae. Without pleurocystidia. No cheilocystidia hair-like but some weakly lecythiform. 4-spored but range of spore size suggests at least some 2. length=9.2–12.0µm (µ=10.3, σ=0.63), width=6.1–7.7µm (µ=6.9, σ=0.38), Q=1.4–1.6µm (µ=1.49, σ=0.07), n=20. A good member of fragilipedes rather than calodontes. Keys to Mycena stiptata (and thus close to leptocephala but this without characteristic caulocystidia). Requires additional material to be confimed as M. stipata.
Mycena morrisjonesii G. Stev. 1964
[GS] Pileus 2-2.5 cm - diam., fawn with brown striations, bay brown at centre, campanulate, umbonate; flesh thin, white to fawn, fragile. Gills sinuately adnexed, creamy white, distant. Stipe 6-7 cm. x 2-3 mm., pale fawn above bay brown at base, smooth, hollow, fragile. Spores 8 x 6-7um, amyloid, thinwalled. Hymenophoral trama and pileus tissue pseudo-amyloid. Cheilo- and pleurocystidia 25-45 x 5-8um, more or less awl-shaped; gill margin somewha gelatinized (Fig. 2/49, p. 37). HABITAT: in forest litter, Gollan's Valley, Wellington, 20.5.1949, A. Morris-Jones in Stevenson (type). [EH] Spores oval, hyaline, amyloid, smooth, 8-11.5 x 5-6um,. Cheilo- and pleurocystidia fusoid or awl-shaped, thin-walled, filled with a reddish cell sap, 55-75 x 10-16um. [JAC] Cystidia are both cheilo and pleuro, altho denser on edge. 2 & 4-spored. length=7.8–9.8µm (µ=8.8, σ=0.56), width=6.0–7.1µm (µ=6.6, σ=0.36), Q=1.2–1.5µm (µ=1.34, σ=0.09), n=20. This is the same as PDD34878. There was always a chance this might have been a pale M. mariae but the cystidia have a much longer neck. Recent collections named M. m-j have a much paler cap than described by Stevenson, so there is the chance of another species hiding under this name and the true M. morris-jonesii has not been recollected recently.
Mycena parsonsii G. Stev. 1964
no doubt about this one. A good species and consistent with recent collections.
Mycena pinicola G. Stev. 1964
[GS] Pileus 2-5-4 cm. diam., vinaceous brown, darker at centre, striate at edge, plano-convex, smooth, moist; flesh soft, dull vinaceous. Gills adnexed, pale vinaceous with translucent margins, moderately distant. Stipe 6 cm. x 4-5 mm., vinaceous fawn, smooth, sub-translucent, hollow, fragile. Spores 7-8 X 3-3.5um, amyloid, thin-walled. Hymenophoral trama and tissue of pileus strongly pseudo-amyloid. Cheilocystidia 20 x 5-6um, ornamented, in a rnore or less gelatinized layer (Fig. 2/46, p. 37). HABITAT: in litter in Pinus plantation, Ettrick, 16.5.1953, Stevenson (type). Although near to M, psammicola (Berk. & Br.) Sacc. and M. piceicola A. H. Smith, this is.a considerably more robust species. [EH] The poor state of the type collection precludes an accurate examination of the microscopical characters of this species. Because of this, it is uncertain whether M. pinicola is an introduced species. The fungus was found growing in litter in Pinus plantations. [JAC] The specimen is poor, but not unusable. Cap epidermis is partially gelatinised. This has weakly amyloid spores with a high Q length=7.2–9.1µm (µ=8.0, σ=0.49), width=3.2–3.9µm (µ=3.5, σ=0.18), Q=2.0–2.5µm (µ=2.27, σ=0.14), n=20. Occasional cylindrical cheilocystidia within an entangled mass of thinner hyphae on gill edge. There is no sign of Stevenson's ornamented cheilocystidia, nor was it ever probable given the stature of the fungus. This is M. 'craigieburn' , i.e. section calodontes, which is quite obvious when you read the description. Given that this is the second collection from a conifer plantation, it supports the idea that Craigieburn = M. vinacea, and that here in NZ at least, it is not confined to pinus plantations.
Mycena primulina G. Stev. 1964
[GS] Pileus 5-14 mm. diam., pale yellow darker at centre, broadly campanulate with indistinct umbo, dull, smooth; flesh thin, concolorous. Gills sinuately decurrent, pale yellow, moderately crowded, long and short intercalated. Stipe 2-5-5 cm - x l mm. Pale yellow darker at base, smooth, fragile, with scattered white fibrils towards base. Spores 6-7 x 4um, slightly amyloid, thin-walled. Hymenophoral trama and tissue of pileus pseudo-amyloid, with many large cells, 60-90 x 20-30um. Cheilo- and pleurocystidia abundant, ornamented (Fig. 2/44, p. 37). HABITAT : amongst moss, Wai-iti, Nelson, 19.5.1956, M. Stewart in Stevenson. [EH] spores oval, hyaline, inamyloid, smooth, 4-5 x 3 um. Cystidia fusoid to awl-shaped, hyaline, 20-32 x 4-7um. [JAC] Wai-iti 'recreational park' is dominated by exotics. I assumed this would turn out to be Rickenella fibula but it does not have the cystidia of that species. There are no signs in any of the material of the cheilos mentioned by Stevenson, and very unlikley there would be. Those must have been observations from a different collection. I cannot find Egon's fusoid to awl-shaped cystidia. No tissue amyloid or dextrinoid. Spores glued together. Cap a partially gelatinsed cutis, without ornamentation or cystidia, and not pseudoamyloid. lamellae exuding oild drops into melzers. This does not have the elongate spores of Hemimycena jac11428 and is not H. olida. Frosting that looks like caulocystidia are just glued spores. This is not the same as any other material I have seen labelled M. primulina. This appears to represent a subsequently uncollected, and probably exotic, Hemimycena/Atheniella.
Mycena subdebilis G. Stev. 1964
[GS] Pileus 2-4 mm. diam., olive grey with white striations at margin, hemispherical, smooth; flesh thin, olive grey, fragile. Gills adnexed, white to grey, ; moderately distant. Stipe 20-25 x 0-5-1 mm., white, translucent, solid, with narrow white disc at base. Spores 8-10 x 4-5um amyloid. Hymenophoral trama and tissue of pileus pseudo-amyloid. Dermatocystidia 20 x 8um, finely ornamented. Gill edge gelatinized and with cheilocystidia (Fig. 2/40, p. 37). HABITAT: on litter, Woodhaugh, Dunedin, 5.6.1953, Stevenson (type). [Desjardin] Basidiospores (Fig. 127) 7.4-8 x 4.2-4.8 um, smooth, hyaline, amyloid, thin-walled.- Basidia 4-spored.- Lamellar edge gelatinized; material too scanty and reviving poorly for analysis of hymenial cystidia, only a few collapsed cheilocystidia seen, these irregularly cylindric to clavate, with few, irregular, large apical excrescences.- Pileipellis a cutis of repent, densely diverticulate hyphae embedded in a gelatinous matrix; hyphae 1.5-3.5 umm diam, hyaline, inamyloid, thin-walled; diverticula simple or branched, 1.5-7 x 1-1.5 um; no acanthocysts nor cherocytes observed. Hypodermium of dextrinoid, hyphae inflated up to 20 mm diam, hyaline, non-gelatinous; with scattered oleiferous hyphae in pileus trama - Stipe tissue monomitic; cortical and medullary hyphae undifferentiated, smooth, hyaline, strongly dextrinoid, non-gelatinous- Caulocystidia from stipe apex short-cylindric or irregularly clavate, smooth; caulocystidia from stipe base (Fig. 128) and cystidia from basal ring irregularly cylindric, with the base of the cell knobby or with broad diverticula, and apex of cell with one to several long, filamentous, 'spidery' appendages, these smooth or with few diverticula, hyaline, inamyloid. Stevenson (1965) included M. subdebilis in sect. Sacchariferae without any explanation as to its placement. She described the pileus as smooth and the lamellar edges as gelatinized. The species clearly does not belong in sect. Sacchariferae because of a pileipellis of densely diverticulate hyphae embedded in a gelatinous matrix and lacking acanthocysts, a gelatinized lamellar edge, and caulocystidia with filamentous appendages. Mycena subdebilis is possibly allied with species in sect. Fragilipedes, although the caulocystidia of M. subdebilis are unusual for this section. [JAC] in GS paper the figure for the spore/cystidium says dermatocystdium, but main text implies cheilocystidium. Pileal surface with fine diverticulae. Partially gelatinised. Hypodermium of relatively small cells. Pseudoamyloid. Desjardin's caulocystidia not found. Has bunches of thin coiled diverticulae. 4-spored. length=6.7–8.1µm (µ=7.5, σ=0.31), width=3.4–4.5µm (µ=3.9, σ=0.26), Q=1.5–2.2µm (µ=1.90, σ=0.15), n=20. This is the same as M. 'Perseverence Rd'.
Mycena subfragillima G. Stev. 1964
[GS] Pileus 3-10 mm. diam., pale greyish fawn, striate-sulcate at margin campanulate with or without an umbo, silky; flesh thin, fragile. Gills adnate or sinuately adnexed, creamy white at first becoming pink with whit margins, moderately crowded. Stipe 2-7 cm. x 1 mm., whitish above, ochraceous fawn below, hollow, fragile, silky smooth, with spreading hyphal hairs at base. Spores 9-10 x 6-7um, amyloid, narrower at apicular end. Hymenophoral trama and tissue of pileus strongly pseudo-amyloid. Cheilocystidia 25-35 x 5-10um, more or less violin-shaped (Fig. 2/48, p. 37). Cuticle somewhat gelatinized repent hyphae with branched endings. HABITAT : singly attached to leaves of litter under planted deciduous trees and indigenous shrubs, Nelson, 6.5.1957, Stevenson (type). [JAC] Stipe diverticulae similar to M. leptocephala. Also has very distinct septa that are highlighted in melzers. 4 and 2 spored. No cystidia are violin shaped. No other PDD material I have seen labelled M. subfragillima is this. The type comes from Queen's Gardens, a highly mofified habitat.Like a number of Stevenson's collections from modified habitats this this appears to be M. olivaceomarginata, or close. spores length=8.6–11.7µm (µ=9.5, σ=0.76), width=5.4–7.3µm (µ=6.1, σ=0.43), Q=1.4–1.9µm (µ=1.57, σ=0.12), n=20.
Mycena veneta G. Stev. 1964
Agree with C.G. that this is M. interrupta
Omphalina albida G. Stev. 1964
[GS] Pileus 0.5-2-5 cm. diam., white becoming tinged cream, plane with downrolled margin becoming umbilicate, velvety to fibrillose, somewhat grooved or striate towards margin; flesh thin, white. Gills decurrent, white, thin, shallow, moderately distant to crowded. Stipe 0-5-2 cm. x 1-2 mm., white, centric or eccentric. Spores 5 X 3-4um, non-amyloid (Fig. 1/23, p. 10). Cuticle of loosely woven hyphae 2-5um, diam., with clamp connections, some with thickened walls. HABITAT: on fallen rotting wood or tree fern stipes, arising individually but many close together from a spreading white mycelial mat, with or without white rhizomorphs, Levin, 3.5.1947, Stevenson (type); & Levin, 18.6.1949, Stevenson. [EH] The spores are oval, smooth, neither amyloid nor dextrinoid, thinwalled, without germ-spore, 5-5.5 X 3-3.5 um. Cystidia none. Cuticle consists of cylindrical, hyaline, nongelatinised hyphae, 3-6 um, diam., with clamp-connections. [JAC] Easily distingusihed from Pleurocollybia cremea by funnel-shaped cap, decurrent gills and clamps. P. cremea can also have basal hyphal pad and rhizomoprhs. Sequences of recent material indicate this is a Rhizocybe
Omphalina wellingtonensis G. Stev. 1964
[GS] Pileus 1-2 cm. diam., orange darker at centre, plane becoming concave, margin slightly exceeding gills, matt; flesh thin, orange. Gills decurrent, orange-yellow, shallow, crowded. Stipe 2-3 cm. x 1-1.5 mm., orange, smooth, hollow, fragile. Spores 10 X 4.5um, non-amyloid, thin-walled; print white [EH] Examination of the type material and of additional fresh carpophores showed clearly that this rather common species in New Zealand does not belong in Omphalina. The specific characters indicate a distinct relationship to Gerronema sensu. Singer. More studies are necessary to extend our knowledge of this peculiar agaric. [JAC] type material shows the characteristic frosty and resinous edge to the gill seen in later material. Exuding oil drops into melzers. There can be no doubt this is the same as PDD 80829, PDD 87414, PDD 96314 and apparently PDD 105747 which is much paler. Sequences indicate it occupies an isolated position with Mycena acicula and other orphans from Mycena, much close to Atheniella in need of a new generic name, and probably family (atheniellaceae).
Oudemansiella australis G. Stev. & G.M. Taylor 1964
K(M)153678, Taylor 51. The collections consists of 3 fruitbodies. Petersen & Hughes in their revision regionally recognise O. apalosarca (syn O. australis), O. canarii (tropics and olive capped) and O. exanullata (E. Australia and big). The Types originate from: O. apalosarca - Sri Lanka, O. canarii - Indonesia, O. exanullata - Eastern Australia, O. australis - New Zealand. In their phylogeny they have a single O. australis/apalosarca clade (all NZ material) and two unamed clades (1&2) of American 'O. canarii/cubensis' not discussed further. Morphologically they separate apalosarca from canarii & exannulata by the presence of a polycystoderm in the former and a trichoderm in the latter. An examination of multiple sections from two of the caps of this type indicates difficulty in recognising the distinction. It is not a 'hymeniderm becoming a polycystoderm' and does not have 'keg-shaped cells'. Some of the inflated cylindrical elements do correspond to the Petersen plate, but are at odds with the text. In addition more recently available sequence data has replaced the single 'apalosarca' clade with one from Sri Lanka labelled canarii, a taxon from Au/PNG labelled australis and the NZ clade, also labelled australis. From these data it seems most likley that the name O. apalosarca cannot be applied to all Australasian material and remains unfixed, the correct name for the Au/PNG material requires clarification, and the correct name for the NZ taxon is O. australis. Good/clear morphological separators between these species clearly require more work, or at least a better definition of what to look for. It also seems possible that O. exanullata is a phenotyic variant of O. australis.
Panellus atrofulvus G. Stev. 1964
K(M) 235252, Stevenson 1291. The dark pileus colour alone seems adequate to separate from H. veluticeps. The densley tomentose cap and stipe consiste of thic-walled hyphae. No cystidial elements seen. Cheilocystidia branched. Spores deeply amyloid length=7.7–10.4µm (µ=8.7, σ=0.66), width=4.2–5.2µm (µ=4.6, σ=0.31), Q=1.7–2.2µm (µ=1.89, σ=0.12), n=20. Adequate phylogeny data for overseas similar species currently lacking.
Panellus cremeus G. Stev. 1964
[GS] Pileus 1-2 cm. diam., dull white tinged fawn and green, orbicular to reniform with overlapping auricles, velvety to finely fibrillose; flesh thin, gelatinous, greyish. Gills adnate or radiating from point of attachment, distant, thick and soft. Stipe 2-5 X 1-2 mm., lateral, dark-green, fibrillose with fibrillose basal disc; or absent. Spores 8-10 X 4-5um non-amyloid, minutely rough, thin-walled (Fig. 1/45, p. 10). Hymenophoral trama and tissue of pileus of loosely woven hyphae embedded in mucilage. HABITAT: on fallen twigs, Levin, 27.10.1947, Stevenson; Nelson, 17.4.1956, Dorothy Read in Stevenson (type); & Keith George Park, Wellington, 26.6.1958, Stevenson. [EH] The almond-shaped spores (10.5-12 X 5.5-6 um), structure of the cuticle, and habit of the fungus, place this species in Delicatula rather than Resupinatus. [Segedin] = Campanella tristis. [JAC] Pileipellis stronly diverticulate, hyphae with hyaline zebroid encrustation, clamped. With thin-walled, variable cheilocystidia. Exactly agreeing with Segedin's redescription of C. tristis and the synonymy is confirmed.
Panellus fulgens G. Stev. 1964
[GS] Pileus 4-6 X 3-4 cm., pinkish fawn with or without green or grey tints, glistening viscid at first drying smooth and striate, orbicular with somewhat crenulate and waved margin. Gills adnate, concolorous, moderately distant. Stipe 5-8 X 4-5 mm., lateral, pinkish fawn, smooth. Spores 8-10 x 3-4um amyloid (Fig. 2/4, p. 37). Hymenophoral trama of mainly regular hyphae with clamp connections, including some thick-walled hyphae. Cuticle of loosely woven almost parallel thin-walled hyphae. HABITAT: on fallen wood, Mt. Egmont, 16.6.1948, Stevenson; & Leith Saddle, Dunedin, 20.6.1953, Stevenson (type). [EH] = Pleurotopsis subgrisea (Stevenson) Horak [JAC] In my opinion roseola and subgrisea are just colour variants of Scytinotis longuinquus. On the label Greta has written 'green-pink tint' contradicting the formal description, but adding to the view that colour is variable. Spores cylindrical, amyloid, collapsing. Hymeniium without observed cystidia. 4-spored. Tissue tough, not squashing easily.Context with thick-walled hyphae. Spores from gill length=6.6–9.7µm (µ=8.4, σ=0.82), width=3.1–4.0µm (µ=3.5, σ=0.26), Q=1.9–2.8µm (µ=2.41, σ=0.25), n=20. Petersen, for NZ collections of S. longuinquus measured 5.9-(6.6)-7.2 x 3.5-4 (Q=1.83), and 6.6-(7.53)-8.6 x 3.5-4.1 (Q=1.96). The Pacific coast collections with larger spores. By contrast P. stypticus has much smaller spores in the range 3-5 x 1.5-2.5.
Panellus metuloideus G. Stev. 1964
[GS] Pileus 3 x 2.5 cm., fuscous, moist, smooth, spathulate with down-rolled margin. Gills decurrent, creamy, shallow, moderately crowded with some forking, margins becoming serrulate. Stipe 3 X 4 mm., brown above, cream below. Spores 7-8 X 4~4.5um, amyloid, thin-walled (Fig. 1/55, p. 10). Metuloids 70 x 20um, pseudo-amyloid, with or without encrusting crystals, thick-walled, very abundant on gill-faces. HABITAT : on fallen wood in Beilschmiedia tawa forest, Keith George Park, Wellington, 31.3.1949, Stevenson (type). The cylindric amyloid spores of this fungus point to the genus Panellus where it is treated, but the very abundant pseudo-amyloid metuloids also relate it to the genus Hohenbuehelia. [EH] A glance at the illustrations shows that this species clearly has to be transferred to Hohenbuehelia. [JC] No lamellulae observed. The gill edge is slightly serrulate. The cap surface is polished chestnut brown. With a cream tomentum near attachment and white rhizoids. This is much darker than all previous species examined. A section through pileipellis shows a hyaline surface gelatinised layer, followed by a dark brown layer, followed by the medial stratum, followed once again by a dark brown layer adjacent to the hymenium. The double brown lines are quite clear under a stereo. Gloeosphex cheilocystidia are relativley few and mostly without apical globules. Spores most certainly inamyloid, length=5.9–7.4µm (µ=6.6, σ=0.34), width=3.9–5.2µm (µ=4.5, σ=0.36), Q=1.3–1.7µm (µ=1.46, σ=0.11), n=27.
Panellus niger G. Stev. 1964
[GS] Pileus 2-5-4.5 cm - diam., black, velvety fibrillose, more or less plane becoming irregularly waved, margin down-rolled. Gills adnate, grey, thick, shallow, moderately crowded. Stipe 2-3 cm. x 3-6 mm., centric to excentric, greyish sepia, fibrillose to fibrillose-scaly with or without tufts of fibrils at base. Spores 5-6 X 2.5-3um, amyloid (Fig. 2/5, p . 37). Cuticle of closely woven almost parallel hyphae with dark to very dark walls. HABITAT: on fallen wood, Ohau River, 25.5.1952, Stevenson (type). This species is close to but distinct from the Australian Pleurotus sulciceps Cooke & Massee, the type-specimen of which has been examined. [EH] = Hydropus sp. Spores oval to elliptical, hyaline, weakly amyloid, smooth, 4-4.5 X 2-2.5 um. Cystidia none. Cuticle with intermixed oleiferous hyphae showing in KOH a dark brown plasmatic pigment, with clamp connections. [JAC] The fragments appear suspiciously black, as if dried poorly, or at excessive heat (like some Stevenson Mycena collections), or intrinsically blackening (Lyophyllum/Tephrocybe). Some caps show a brown colouration and I am not convinced by the original descriptions as black, and neither is the cap surface velvety fibrillose and the stem also not scaly. 4-spored. Basidia with pale brown plasmatic content in KOH and micro-crystals on hymenial tissue. Lamellae with rare patches of cylindrical basidiolar cheilocystidia. The spores do not appear to be amyloid. Spores on cap have a brownish colouration, and perhaps not from the frb. Pileipellis an irregular trichoderm of long hyaline hairs. The subpellis irregular with hyaline and brown oleiferous inflated hyphae and occasional hydropid-looking brown vesicles. Spores (from gill not cap), excluding apiculus length=4.8–5.9µm (µ=5.3, σ=0.37), width=2.1–2.9µm (µ=2.6, σ=0.19), Q=1.8–2.2µm (µ=2.02, σ=0.12), n=14. This appears to be porothelioid rather than related to Pleurella ardesiaca. It does not conform to any of the taxa currently known by me.
Phaeomycena fusca G. Stev. & G.M. Taylor 1964
[GS] Pileus 1.5-3 cm. diam., fuscous, sub-fibrillose with some glistening particles, finely striate at margin, hemispheric with or without a broad umbo; flesh thin, white to brownish. Gills adnexed to free, pink becoming pale fawn, deep, moderately crowded, long and short intercalated. Stipe 3-6 cm. X 2-3 mm., white to fawn, silky smooth with a few tufts of white hyphae at the somewhat swollen base. Spores 7 x 5-6um, non-amyloid, moderately thick-walled with endosporium stramineous in NH4OH (Fig. 2/15, p. 37): print white. Cuticle of repent hyphae over a cellular hypodermium. HABITAT: on fallen rotting Nothofagus log, Lowry Bay, Wellington, 23.4.1961, G. M. Taylor (type). [EH] = Pluteus sp.; there are no doubts about the taxonomic position of this collection and we see no reason to place it in the monotypic genus Phaeomycena which was recorded once from Madagascar. The type material is in fragmentary condition, and only microscopic characters were partially recovered. [JAC] with these spores and a hymeniderm (utriform) cap cells this must be close to P. terricola. I could find no distinct cystidia on the few remaining gills. Best left as a nomen dubium due to the inadequate nature of the type.
Pleurotus parsonsiae G. Stev. 1964
K(M) 235257. Stevenson 461. Tait's Bush Levin. 20/11/1948. In Segedin's examination of the holotype she notes 'Lamellar edge of holotype (Stevenson 416) so overgrown that no features could be ascertained ... pileipellis badly overgrown with Penicillium sp.' However, the type is 461 not 416 and the lamellae and pileipellis show no signs of Penicillium which raises some doubt about what specimen was being examined, although the type is correctly enumerated under collections examined. The material, whilst macroscopically in good condition, does appear to have been dried under excesive heat which has disrupted the micro-details, like many (most) of Stevenson's collections. The pilleipellis hyphae do not unambiguously show skeletal hyphae of the P. djamor complex. Spores length=9.6–12.5µm (µ=11.3, σ=0.69), width=4.5–5.6µm (µ=5.1, σ=0.33), Q=1.9–2.8µm (µ=2.20, σ=0.20), n=29. Lamellar hyphae not obviously oleiferous or thick-walled. Cystidia not observed, although material is unclear due to excessive heating. The stipe tissue does clearly have skeletal hyphae. There is an annotation slip by Ron Petersen 12/9/99 which says 'monomitic - try P. pulmonarius'. The macroscopic apperance of the material is perhaps close to P. pulmonarius, especially the collections on Cordyline, however skeletal hyphae are present in the stipe (but not clearly dimitic). I believe excessive heating has altered the tissue hence Ron's comment, but I may be incorrect and this is P. pulmonarius. I will continue to treat this is the NZ species within the P. djamor complex but with some hesitation.
Pluteus purpuratus G. Stev. 1962
K(M) 235279, Stevenson 881. The collection has been cooked on drying, like much of Stevenson's material. The spores have a retracted and dextrinoid endospore, fully consistent with my recognition of this taxon as Rhodocollybia purpurata.
Resupinatus crawfordiae G. Stev. 1964
[GS] Pileus 2.5-3.5 cm. diam., reddish brown, orbicular to ovate with downrolled margin, subfibrillose; flesh concolorous, tough gelatinous. Gills decurrent, moderately crowded, shallow, fawn. Stipe 0.5-1 X 0.2-0.7 cm., lateral or markedly excentric, concolorous, velutinate. Spores 7-8um diam., non-amyloid, globose, thin-walled (Fig. 1/47, p. 10). Hymenophoral trama and cuticle of loosely woven, partly gelatinized hyphae. HABITAT: on fallen JVothofagus menziesii, Nelson, 6.7.1949, A. Crawford in Stevenson (type). [Buchanan et al] In his revision of the Agaricales of New Zealand, Horak (1971) appears to have been confused by the same epithet having been applied by Stevenson (1964) to two pleurotoid fungi, namely Lentinellus crawfordii and Resupinatus crawfordii. In his list, Horak (1971) cited Resupinatus (Lentinellus) crawfordii, seeming to indicate that he considered the two species to be the same. He noted that 'the identification of Stevenson cannot be confirmed because carpophores of the type material are sterile.' As shown above, Lentinellus crawfordii is easily recognised and a good species. However, the type material of R. crawfordii (Stevenson 718, on fallen Nothofagus menziesii, Nelson, A.Crawford, 6. vii. 1949, K) is certainly in a poor state, and little detail of the hymenium could be gleaned. Spores were found, however, which were short cylindric to slightly allantoid and strongly amyloid, and there were densely staining amyloid remains of spores clinging to the hymenium. The cheilocystidia and pleurocystidia are difficult to determine accurately, but the lamellar edge is sterile and appears to consist of short, clavate cheilocystidia. The trama is dense, of more or less parallel, thickish-walled hyphae of 3-5 um diameter. The subhymenium is cellular, very densely compacted of narrow, somewhat thick-walled hyphae. The context is of very narrow (2-3 um in diameter), loosely interwoven hyphae with large clamp connections. The pileipellis appears to be only little differentiated, with repent hyphae with coiled, slightly inflated hyphal endings. The stipe is short and stout, with distinctly velvety to fibrillose surface. The fibrils are made up of bundles of narrow hyphae, or the surface of the stipe may be covered with short caulocystidia. The fungus can be readily identified as a species of Panellus. The size of the spores, the absence of distinctive cheilocystidia, and the thin-walled pileipellis as well as the more robust form of the basidiome distinguish it from Panellus stypticus (Bull.: Fr.) P. Karst. which is also present in New Zealand and described by Petersen and Bermudes (1992). The new combination proposed for this fungus is Panellus crawfordii. [JAC] The pileipellis is a dense cutis of long thin clamped hyphae over a gelatinized subpellis. Spores amyloid length=6.0–9.4µm (µ=7.4, σ=0.72), width=3.3–4.5µm (µ=3.9, σ=0.31), Q=1.6–2.2µm (µ=1.90, σ=0.16), n=20. Lamella without cystidia, trama with long elements like pileipellis. The macro and micro moprhology confirm my earlier suspicion that this is yeat another synonym of Scytinotus longuinquus.
Resupinatus dorotheae G. Stev. 1964
[GS] Pileus 1-2 cm. diam., dull white tinged fawn and green, orbicular to reniform with overlapping auricles, velvety to finely fibrillose; flesh thin, gelatinous, greyish. Gills adnate or radiating from point of attachment, distant, thick and soft. Stipe 2-5 X 1-2 mm., lateral, dark-green, fibrillose with fibrillose basal disc; or absent. Spores 8-10 X 4-5um non-amyloid, minutely rough, thin-walled (Fig. 1/45, p. 10). Hymenophoral trama and tissue of pileus of loosely woven hyphae embedded in mucilage. HABITAT: on fallen twigs, Levin, 27.10.1947, Stevenson; Nelson, 17.4.1956, Dorothy Read in Stevenson (type); & Keith George Park, Wellington, 26.6.1958, Stevenson. [EH] The almond-shaped spores (10.5-12 X 5.5-6 um), structure of the cuticle, and habit of the fungus, place this species in Delicatula rather than Resupinatus. [Segedin] = Campanella tristis. [JAC] Pileipellis stronly diverticulate, hyphae with hyaline zebroid encrustation, clamped. With thin-walled, variable cheilocystidia. Exactly agreeing with Segedin's redescription of C. tristis and the synonymy is confirmed.
Resupinatus tristis G. Stev. 1964
K(M) 235135, Stevenson 1431. The type requires little further annotation. It is consistent with the current interpretation of this species. The gill edge is difficult to observe, being obscured by masses of agglutinate spores. There is some evidence for occasional cystidia similar to the pileipellis.
Resupinatus violaceogriseus G. Stev. 1964
[GS] Pileus up to 2.5 cm. diam., young specimens violet at margin, otherwise entirely violaceous grey, bell-shaped to broadly cup-shaped with inrolled margin, fibrillose at first, becoming pruinose with scattered fibrils; flesh greyish, tough gelatinous; sessile and pendulous attached at centre of upper surface. Gills radiating from point of attachment, moderately crowded, rather shallow and thick, violaceous grey. Spores 6-7 x 3 um, non-amyloid, hyaline (Fig. 1/46, p. 10). Hymenophoral trama of very loosely woven subregular hyphae with clamp connections. Cuticle of loosely woven branching hyphae, up to 5um, diam., with greyish walls 1um thick.HABITAT: on fallen Nothofagus menziesii, Nelson, 6.7.1949, A. Crawford in Stevenson (type). [EH] (as Marasmiellus) Spores elliptical to subcylindrical, hyaline, neither amyloid nor dextrinoid, smooth, 5-6.5 X 2.5-3 um Cheilocystidia broom-like. Cuticle of heavily diverticulate cells, clamp connections present. [JAC] spores length=5.3–7.2µm (µ=6.1, σ=0.59), width=2.3–3.5µm (µ=3.0, σ=0.29), Q=1.6–2.6µm (µ=2.05, σ=0.23), n=20. Nothing to add to Egon's account except that the gill face has regular crystal deposits and it isn't clear what source they have. There can be no doubt this is the same as recent collections.
Russula pleurogena Buyck & E. Horak 1999
[Cooper] Collection conists primarily of small immature fruitbodies with no spores and undeveloped cuticle. Larger specimens with mature spores have the scurfy cap appearance which consists of chains of elongate brown cells arising from spherical base cells with sympodial budding. There are numerous refractive pilo macrocystidia, frequently with furcate appices, SV-ve Cheilomacrocystidia are not distinguished from pleuromacrocystidia except perhaps with stronger brown content. All cystidia with various depths of brown internal pigment in Melzers. The spores from gill variable in size length=6.9–9.0µm (µ=7.9, σ=0.57), width=6.2–7.7µm (µ=6.9, σ=0.46), Q=1.1–1.3µm (µ=1.16, σ=0.05), n=20 Spores with dictinct plage, without amyloid spot. Ornamentation to 0.8um. The cap structure of this within our Russula species is perhaps closest to atroviridis but actually much more like the Lactarius sepiaceus group.
Secotium gunnii Massee 1891
[Massee] Small; stem slender, 1.5 cm. high, 3 mm. thick, solid, equal or slightly incrassated downwards, pale brown, passing through the gleba as a columella and expanding at the apex into a thick wall; peridium 1.5 cm . across, subglobose, deeply umbilicate below, pale brown, smooth; flesh of stem and wall of peridium whitish; gleba brown, cells small, irregularly polygonal; basidia clavate, tetrasporous, sterigmata very slender, elongated, spores obliquely elliptical, tips acute, smooth, pale reddish-brown, 7 x 4um. On the ground. Sulphur Springs, New Zealand. (Gunn.) (Type in Herb. Berk., Kew.) [JAC] This is the protologue from Grevillea v19, 1890. However, the name first turns up in Grevillea v11, 1883 in the list of Australian Fungi by Cooke where it says "Secotium Gunnii, Berk, in Herb. Berk., No, 4412. Sulphur springs, Tasmania.". The name next turns up in de Toni's enumeration of lycoperdaceae in Saccardo's Syllogue v7, 1888, p55 as "Secotium Gunnii Berk. in Herb. Hab. Sulphur springs, Tasmania.". In 1895 it is listed again by Cooke in his handbook of Australian Fungi as 'Tasmania'. The first reference after the protologue to Sulphur Springs New Zealand is in Saccardo Syllogue v11, part 3, p157, 1895. From then Cunningham's references are to the type by Gunn from Sulphur Springs, Rotorua, and material by Rodway from Tasmania. The type material in Berkeley’s herbarium (probably the source of data in all publications) shows an open cap and has the conflicting annotation "Sulphur Springs, Gunn", by an anonymous author (not Gunn or Berkeley, but maybe Massee). The problem is that Ronald Gunn never visited New Zealand, and there is no Sulphur Springs in Tasmania, but there is in New Zealand. One, or both of these assertions is incorrect and subsequent authors appear to have gone one way or the other. There is a non-online catalogue of his Tasmanian collecting localities (NSW) that should be checked for Sulphur Springs. The Kew herbarium sheet is annotated 257 in Gunn’s distinctive handwriting. Gunn allocated ‘shipment numbers’ to collections of taxa he posted to the Hookers. In his (online State Library NSW) catalogue 257 belongs to a batch of Lycopodium ferns sent in 1833, but it is possible he numbered fungi separately. His catalogue contains just a single page of fungi and 257 is not mentioned. Subsequently there is no mention of this collection in Berkeley's Decades of Fungi. The collection must date from the Hooker(s)-Gunn correspondence from 1832 to 1860 and material passed to Berkeley. The herbarium sheet annotation of ‘Sulphur Springs’ (probably by Massee) is likely to date from around 1879 when Berkeley donated his herbarium to Kew. My belief is that Cooke was correct, and this represents a collection by Gunn from Tasmania and the 'Sulphur Springs' is a later slip, perhaps relating to North American secotioid material studied by Massee at the same time (Sulphur Springs Arizona). There is closely numbered material from the USA (Secotium texensis, Berkeley 4416). There might be more information in the Hooker/Gunn correspondence.
Tricholoma amyloideum G. Stev. 1964
[GS] Pileus 4-6 cm. diam., luteous more or less covered with brownish-red (claret brown) fibrils, broadly convex at first, becoming plane to shallow concave; flesh yellow. Gills sinuate, moderately crowded, yellow becoming tinged brownish red. Stipe 4-7 x 1 cm., yellow overlain with a few reddish fibrils, smooth, striate, tending to split lengthwise, solid, with a conspicuous inferior membranous ring. Spores 7-8 x 4x5-6.5um, amyloid, hyaline, thinwalled (Fig. 1/27, p. 10); print white. Cuticle of loosely woven hyphae 10um diam., with clamp connections and internal pigment. A definite fishy smell develops in older specimens. HABITAT: under Nothofagus, Butterfly, 10.7.1949, Stevenson (type); Nelson, 12.7.1949, A. Crawford; Catchpole, 3.5.1958, Stevenson. [EH] This is the first record of the South American genus Porpdoma in New Zealand. [JAC] Pat commented that amyloid reaction in this material could not be seen in spores. However it is strong. The hymenium has occasional basidia with purple content in KOH, exactly like recent collections. Cheilocystidia are not as obvious as later collections, but not many gill edges are left in surviving material. Cap also with purple terminal elements in KOH, and clearly clamped.
Tricholoma elegans G. Stev. 1964
K(M)235263, Stevenson 911. The material confirms the modern concept of T. elegans.Within NZ Tricholoma this variable species is only possibly confused with T. 'nelsoniana' with a morphology requiring clarification. It seems likley the latter differes in its squamulose/fibrillose stipe/pileus. These characters are not present in this type material. Spores length=4.7–7.5µm (µ=6.0, σ=0.59), width=4.0–5.4µm (µ=4.7, σ=0.34), Q=1.1–1.5µm (µ=1.28, σ=0.11), n=20 , excluding prominent apiculus, to 1.5um.
Tricholoma hemisphaericum G. Stev. 1964
[GS] Pileus 1-1.5 cm. diam., greyish sepia, hemispherical, matt, cuticle drying paler and cracking into small scales; flesh thin, brownish. Gills decurrent by a tooth, deep, distant, whitish. Stipe 2.5 cm. x 1-3 mm., greyish sepia, tapering slightly to base, solid, surface smooth, striate, cracking to make a few small scales below. Spores 6-7 x 4um, faintly amyloid, oblong-ovoid, hyaline, thin-walled (Fig. 1/26, p. 10). HABITAT: in soil under Podocarpus totara, Woodside, Dunedin, 23.5.1953, Stevenson (type). [EH] Cuticle of smooth, thin-walled cells forming an hymeniderm, coloured with a brown, plasmatic pigment, clamp connections present. Spores oval, hyaline, amyloid, smooth, 5-6 x 3.5-4 um. Cheilo- and pleurocystidia none. [JAC] does indeed appear to a 'Dermoloma' like D. murinum except with distinctly amyloid spores. No cap/stem tissue amyloid or dextrinoid. I could not find the caulocystidia depicted by EH. 2 and 4 spored basidia but collapsing readily. No cystidia seen. I think there is a chance that SEM would show a very finely asperulate spore surface. spores length=4.7–5.8µm (µ=5.3, σ=0.29), width=3.0–4.3µm (µ=3.7, σ=0.34), Q=1.2–1.8µm (µ=1.43, σ=0.14), n=20. A species that is microscopically distinct and not collected recently. Rare.
Tricholoma murinum G.M. Taylor & G. Stev. 1964
[GS] Pileus 2-5 cm. diam., mouse grey, darker at centre, convex to plane with depressed centre, velvety; flesh white with a thin grey zone above the gills, continuous with that of stipe. Gills sinuate, pale grey, moderately crowded. Stipe 3-4 x 0-5-1 cm., pale grey above, darker grey with ochraceous tints below, longitudinally striate; flesh silky white when first cut, becoming greyish. Spores 6-7 x 3.5-4.5 um non-amyloid (Fig. 1/31, p . 10). HABITAT: under scrub, Wellington Botanic Garden, 24.6.1960, B. Sneddon in G. M. Taylor (type). [EH] Cuticle cellular to hymeniform with epimembranous pigment encrusted cell walls, clamp connections present. Spores oval, hyaline, neither amyloid nor dextrinoid, smooth, 5.5-7 X 3.5-4 p. Cystidia none. [JAC] spores inamyloid (maybe very weakly amyloid) and cap with obvious spherical cells with brown plasmatic content (like hydropoid vesicles). Attached pigment not seen. Spores glued in tetrads. Not cyanophilous but granular-looking, especially when collapsed. No siderophilous reaction. Not sure about placement in Dermoloma, which I imagine polyphyletic anyway. Certainly not Porpoloma/Tricholoma/Lyophyllum.
Tricholoma ornaticeps G. Stev. 1964
[GS] Pileus 7-8 cm. diam., ochraceous to saffron yellow thickly dotted with small brown fibrillose scales, convex with down-rolled margin becoming broadly concave; flesh creamy yellow continuous with that of stipe. Gills sinuate, moderately distant, yellow staining brown at edges. Stipe 3 x 1 cm., creamy above, ochraceous at base, fibrillose striate. Spores 8-8.5 x 4.5~5um non-amyloid, ovoid, moderately thin-walled (Fig. 1/32, p. 10); copious white spore print. Cuticle of loosely woven hyphae about 5um diam.; scales are coremia-like tufts of parallel hyphae 3-5um, diam., with thickened walls which are rusty brown in transmitted light. HABITAT: in mountain forest, Waiopehu, 20.4.1947, E. Cone in Stevenson (type). [EH] Examination of the type material (together with additional collection made in New Zealand) justify this proposed combination. Spores oval to subcylindrical, neither amyloid nor dextrinoid, hyaline, smooth, 7-8.5 X 4—4.5 p.. Cheilocystidia conspicuous, thinwalled, with yellow plasmatic pigment in KOH, clamp connections present. Pleurocystidia none. [JAC] cheilos collapsed. Spores length=7.0–9.4µm (µ=8.2, σ=0.7), width=3.8–5.4µm (µ=4.4, σ=0.4), Q=1.6–2.2µm (µ=1.9, σ=0.2), n=16
Tricholomopsis vinosa G. Stev. 1964
[GS] Pileus 2-5 cm. diam., vinaceous, convex with down-rolled margin exceeding the gills, becoming plane, dry, covered with small fibrillose scales; flesh creamy or white. Gills sinuate, moderately crowded, creamy white. Stipe 2-6 cm. x 3-6 mm., vinaceous, striate above indistinct ring, floccose scaly below, fibrous, equal, solid or somewhat hollow at base, flesh white or pale vinaceous continuous with that of cap. Spores 6-7 x 4-5um, faintly amyloid, moderately thick-walled, finely spinulose; print white. Cystidia sparsely scattered on gill faces (Fig. 1/14, p . 10). Cuticle of loosely woven hyphae mostly narrow and collapsed, but some up to 5um diam., clamp connections conspicuous. HABITAT: on fallen wood in mixed forest, Levin, 18.6.1949, Stevenson; & Waikanae, 1.1.1951, Stevenson (type). [EH] Spores oval, hyaline, weakly amyloid, minutely warted, no distinct plage, 5-6 x 3-3.5um. Cheilocystidia none. Pleurocystidia fusoid, apically encrusted with crystals, 30-40 x 4-6 um. Cuticle of irregularly arranged short-celled hyphae, thin-walled, covered with brown epimembranous pigment. All hyphae bear clamp connections. [JAC] most certainly a Melanoleuca but with a cap structure reminiscent of Echinoderma or Cystoderma/Cystodermella. The spores are only weakly amyloid, but definitely so. The packet contains just a few fragments of cap, and unlike other Kew Stevenson collections there is just one packet and not two. There is more material somewhere, including the stipe. This must be considered rare. It is highly distinctive.
Tylopilus formosus G. Stev. 1962 [1961]
K(m) 235256, Stevenson 968. Peter J did not photograph this type. The pileus is minutely squamulose and the pores are excavated near the stipe. Spores length=10.2–12.4µm (µ=11.5, σ=0.56), width=3.7–5.3µm (µ=4.3, σ=0.39), Q=2.2–3.2µm (µ=2.67, σ=0.23), n=21. The pileipellis structure may serve to distinguish the two closely related species which have been referred to T. formosus. The type resembles the version with an attenuated stipe apex, excavated pores around the stipe apex, and dark brown/black but not strong violaceous colours (my #2). That is supported by Stevenson's description which does not mention violaceous colours.

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