Russula osphranticarpa T. Lebel 2017

Caption:

Details

Name scientific

Russula osphranticarpa T. Lebel, Muelleria 36 13 (2017)

Preferred name

Russula osphranticarpa T. Lebel 2017

Taxonomy reference

Lebel, T. 2017: Nomenclatural changes and corrections for some previously described Australasian truffle-like fungi (Basidiomycetes). Muelleria 36: 8-14.

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Endemic

Present

New Zealand

Political Region

Use of the name for Australian material requires confirmation [JAC]

Nomenclature

Authors

T. Lebel

Original authors

T. Lebel

Publication place

Lebel, T. 2017: Nomenclatural changes and corrections for some previously described Australasian truffle-like fungi (Basidiomycetes). Muelleria 36: 8-14.

Year published

2017

Publication page

Nomenclatural status

replacement name

Nomenclatural code

ICN

Basionym

Russula osphranticarpa T. Lebel 2017

Based on

Octaviania redolens G. Cunn. 1942

Blocking name

Russula redolens Burl. 1921

Taxonomic rank

species

Canonical form

Russula osphranticarpa

Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Agaricomycetes

Order

Russulales

Family

Russulaceae

Genus

Russula

Species

osphranticarpa

Synonyms

Associations

View full associations record

Association type

Associated organism

Association source

has host

Agathis australis (D.Don) Lindl.

PDD (1 records from [Not available].)

has host

Dacrydium

PDD (1 records from [Not available].)

has host

Kunzea

PDD (5 records from [Not available].)

has host

Kunzea ericoides (A.Rich.) Joy Thomps. 1983

PDD (17 records from [Not available].)

has host

Kunzea robusta de Lange & Toelken 2014

PDD (1 records from [Not available].)

has host

Leptospermum

PDD (7 records from [Not available].)

has host

Leptospermum ericoides

PDD (3 records from [Not available].)

has host

Leptospermum scoparium J.R.Forst. & G.Forst.

PDD (4 records from [Not available].)

has host

Myrtaceae

PDD (1 records from [Not available].)

has host

Nothofagus

PDD (2 records from [Not available].)

has host

Nothofagus fusca (Hook.f.) Oerst.

PDD (5 records from [Not available].)

has host

Nothofagus menziesii (Hook.f.) Oerst.

PDD (3 records from [Not available].)

has host

Nothofagus solandri (Hook.f.) Oerst.

PDD (1 records from [Not available].)

Descriptions

Beaton, G.W.; Pegler, D.N.; Young, T.W.K. 1984: Gasteroid Basidiomycota of Victoria State, Australia. 2. Russulales. Kew Bulletin 39(4): 669–698.

Martellia redolens (G. Cunn.) G.W. Beaton, Pegler & T.W.K. Young 1984

Collections Examined

VICTORIA. Apollo Bay, Great Ocean road, Maits Rest, hypogeal at base of Eucalyptus regnans, 22 Oct. 1981, K. & G. Beaton 27; 17 July 1982, G. Weste, K. & G. Beaton 31.

Description

Gasterocarp 0.5-2.5 cm diam., subglobose, ellipsoid or irregularly turbinate, depressed around the basal attachment, very occasionally with an exposed gleba. Peridium white when fresh, drying greyish orange, farinose to sub-tomentose, smooth finally wrinkled. Gleba white, cream coloured or pale ochraceous, labyrinthoid, of minute, elongated or irregular, empty chambers, 2-4 per mm, with some radial and concentric arrangement. Tramal plates very thin, 75-100 µm thick, consisting of a narrow hymenophoral trama, lacking sphaerocytes, and moderately well developed subhymenial layers. Columella absent or sometimes poorly developed; sterile base minute. Latex and laticiferous elements absent. Spore deposit pale cream coloured. Spores 7-10 x 7-9(9 ± 0^.4 x 8-5 ± 0-3) µm (excl. orn.), Q= 1.05; orthotropic, globose or nearly so, hyaline, thin-walled, with an ornamentation of hollow, tapering spines, with rounded apices, often coalescing at their bases but without connectives, strongly amyloid; hilar appendix short, 1-1.5 x 0.5-1 µm, cylindric or obconical, with a terminal hilar tear. Basidia 25-37 x 9-11 µm, ventricose-clavate, bearing 2 or 4 slender sterigmata. Leptocystidia present, voluminous, 50-80 x 17-35 µm, ovoid-pedicellate to short lageniform with a broadly rounded apex, and few contents. Hymenophoral trama narrow, more or less regular, of parallel, filamentous hyphae, 2.5-6.5 µm diam. Subhymenial layer 11-16 µm broad, pseudoparenchymatous. Peridiopellis a stratified epithelium, up to 200 µm thick, of agglutinated sphaerocytes, 15-40 µm diam. (Fig. 4 D-G, Pl. 25 K-Q).

Notes

A small hypogeal species, growing in scattered groups, which was originally described from New Zealand. The amyloid, orthotropic spores place this species in Elasmomycetaceae, whilst the absence of sphaerocytes in the hymenophoral trama, together with the spinose spore ornamentation, and the voluminous leptocystidia indicate Martellia to be the most appropriate genus.

Typification

NEW ZEALAND. Auckland, Te Aroha, May 1940, Cunningham 10141 (holotype K).

Cunningham, G.H. 1942: Two additional New Zealand Gasteromycetes. New Zealand Journal of Science and Technology, Series B:General Section 23: 172-173.

Octaviania redolens G. Cunn. 1942

Description

Plants subglobose or tuberiform, white or cream coloured; becoming pallid ochraceous, 0.5-2.5 cm. diameter. Peridium exteriorly slightly tomentose, finely wrinkled or smooth, to 450 µ thick, composed of a single layer of hyaline, woven, non-gelatinized hyphae. Gleba pallid ochraceous, cells compressed, two or more to millimetre, empty; sterile base absent; tramal plates 75 x 100 µ thick, of woven hyphae, not gelatinized, fragile, scissile, especially at the gussets; basidia one-spored. Spores globose or subglobose, 14-22 µ diameter (including spines), apedicellate, epispore hyaline, 2 µ thick, closely covered with narrowly wedge-shaped spines, acuminately pointed, basally often merging and giving to the spore a reticulated appearance, to 4.5 µ long and hyaline.

Latin

Figura subglobosa. vel tuberiformis, alba vel cremes, demum pallide- ochracea, 0.5-2.5 mm. diam. Peridium leviter tomentosum, ad 450 µ crassum, hyphis hyalinis testis. Gleba pallide ochracea, cellulis compressis, 0.3-0.5 mm. diam. Tramarum laminae 75-100 % crassum, hyphis testis, scissiles ; basidium 1-sporam gerens. Sporae globose vel subglobosae, 14-22 µ diam (cum spinulis) ; episporium hyalinum, 2 µ crassum, dense echinulatum, spinulis hyalinis ad 4.5 µ longis.

Notes

When freshly collected the species had a pleasant fragrant smell resembling dried apricots. It is separated from others of the genus present in New Zealand by the single woven layer of the peridium, monosporous basidia and large spores with thick epispore and strongly developed echinulations. Specimens were collected among debris on the forest floor adjoining tracks in rain forest at the base of Mt. Te Aroha.

Typification

Distribution: Auckland, Te Aroha, 100 m., G.H.C., type collection.

Lebel, T. 2002: Sequestrate Russulales of New Zealand: Gymnomyces and Macowanites. New Zealand Journal of Botany 40(3): 489-509.

Gymnomyces redolens (G. Cunn.) Pfister 1976

Collections Examined

SPECIMENS EXAMINED: NORTH ISLAND: AUCKLAND: North Auckland, Piha Valley, J. M. Dingley, Mar 1949, PDD 6355; North Auckland,Piha Valley, J. M. Dingley, 15 Aug 1953, PDD 12334; North Auckland, Piha Valley, Waitakere Ranges, J. M. Dingley, 10 Jun 1971, PDD 29083; Waitakere Ranges, Ridge Track, R. E. Beever, 28 Mar 1997, PDD 67193; Te Aroha, 350 ft, G. H.Cunningham, May 1940, PDD 10141 (Isotype PDD); Waikato, Te Aroha, track to Bald Spur, R. E.Beever, 30 Apr 1988, PDD 48608; Waikato, Te Aroha, track to Bald Spur, R. E. Beever, 30 Apr 1988, PDD 48607; Titirangi, J. M. Dingley, 20 May 1950, PDD 7227; White Track, Piha, J. M. Dingley, 18 Sep 1970, PDD 28585; Kaipara Harbour, South Head, Lake Ototoa Scenic Reserve, M. Castellano s.n. [Trappe 16711], 4 Jun 1995, OSC; Kaipara Harbour, South Head, Lake Ototoa Scenic Reserve, R. E. Beever s.n. [Trappe 16710], 4 Jun 1995, OSC; Okura, Okura Scenic Reserve, R. E. Beever, 30 May 1993, PDD 63305. COROMANDEL: Little Barrier Island, Valley Track, E. P. Laracy & R. E. Beever, 15 Jun 1984, PDD 55423; Little Barrier Island, Valley Track, R. E. Beever, 6 May 1990, PDD 57890; Little Barrier Island, Thumb Track, E. P. Laracy & R. E. Beever, 13 Jun 1984, PDD 55486; Little Barrier Island, near Rangers' house, G. Beever, 11 May 1990, PDD 57889. GISBORNE: Wairoa, Pakarae Kumi Conservation Area, M. Castellano, 25 May 1995, PDD 65085; Wairoa, Pakarae Kumi Conservation Area, R. E. Beever, 26 May 1995, PDD 70556; Bay of Plenty, Urewera National Park, Papatotara, J. Trappe, 25 May 1995, PDD 65076; Bay of Plenty, Urewera National Park, Te Whaiti, R. E. Beever, 25 May 1995, PDD 70528. TAUPO: Turangi, Kaimanawa Forest, Kiko Track at road end, M. Castellano, 29 May 1995, PDD 65098; Turangi, Kaimanawa Forest, Kiko Track at road end, R. E. Beever, 29 May 1995, PDD 70552. NORTHLAND: Whangaruru North Head Scenic Reserve, R. E.Beever, 16 Nov 1984, PDD 55422; Tangihua Forest, near Lodge, R. E. Beever, 23 May 1992, PDD 60332; Tangihua Range, Tangihua Conservation Park, Lion's Lodge, R. E. Beever, 21 May 1992, PDD 60342; Tangihua Forest, Tangihua Conservation Park, Loop Track, R. E. Beever, 9 Apr 1988, PDD 55442. SOUTH ISLAND: NELSON: Dun Mt Track,Stevenson, 25 Apr 1949, Stevenson 525 (zt 70/720). DUNEDIN: Leith Valley, J. R. J. Moore, 13 Apr 1936, PDD 48514; Whare Flat, Chalkies Scenic Reserve, R. E. Beever, 25 May 1990, PDD 57845. FIORDLAND, Fiordland National Park, Lake Hauroko, Lookout Track, R. E. Beever, 21 May 1990, PDD 57857.

Description

Basidiomata 5-25 mm diam., subglobose or irregular, depressed around basal attachment, rarely with an exposed gleba. Peridial surface slightly tomentose, finely wrinkled or smooth, white to cream-coloured drying pallid ochraceous. Context thin, fragile, off-white. Gleba white to cream becoming pallid ochraceous, loculate, locules small,irregular. Stipe absent. Columella absent or present, rudimentary, percurrent. Odour when fresh pleasant, resembling dried apricots; taste not recorded. Latex absent. Peridiopellis 70-150 µm wide, a dense turf of upright to repent, hyaline hyphal tips 20-55 x 2-4.5 µm diam., becoming tangled and interwoven. Peridial context 210-450 µm wide, of tightly interwoven, non gelatinised, hyaline hyphae 2-3.5 µm diam., sphaerocysts 12-22 µm diam. in scattered nests. Endocystidia absent. Columella context when present of interwoven, hyaline hyphae 2-3 µm diam. Hymenophoral trama 40-75 µm wide,of interwoven, hyaline hyphae 2-4.5 µm diam., not gelatinised, with sphaerocysts 12-27 µm diam. in scattered nests. Subhymenium poorly developed, 11-20 µm wide, with 1-2 tiers of isodiametric cells 5-9 µm diam. Basidia 25-35 x 9-11 µm, hyaline, ventricose to clavate, mostly with 1 or rarely 2 sterigmata 3-5 x 1-2 µm, robust. Cystidia 24-49 x 8-15 µm, broadly ventricose with broadly rounded apices and few granular contents refractive in KOH; arising in subhymenium, not extending much beyond basidia, rare. Spores 9-12.5(-14) x 9-12(-14) µm (10.88 ± 0.32 x 10.09 ± 0.3), Q = 1.05-1.07, globose to subglobose, orthotropic and symmetric, wall hyaline. Ornamentation amyloid, a dense spiny reticulum of warts and spines 2-4 µm high, bases just coalescing or several joined at their bases by low lines 0.2-0.8 µm high or ridges ± 1-1.5 µm high in a partial reticulum. Hilar appendix 1-1.5 x 0.5-1 µm, cylindrical; plage inamyloid. Spore colour in mass hyaline, in the locules of the dried gleba appearing pale cream coloured.

Habitat

HABITAT AND DISTRIBUTION: Hypogeous, growing in scattered groups among leaf litter in Nothofagusfusca, N. solandrii, and N. menziesii forests andLeptospermum scoparium or Kunzea ericoides scrub. Fruiting period Mar-Nov.

Notes

NOTES: Gymnomyces redolens is widely distributed in New Zealand. It differs from other New Zealand taxa in the robust spiny-reticulate ornamentation of the spores, and the mono- or bi-sterigmate basidia.The nomenclatural history of this species is given in Lebel & Castellano (2002).

Typification

HOLOTYPE: New Zealand, Auckland, Mt Te Aroha, specimens collected among debris on the forest floor adjoining tracks in rainforest at the base of Mt Te Aroha (350 ft), May 1940, G. Cunningham 10141 K (isotype PDD).