Lepista muritai G. Stev. 1964
Details
Lepista muritai G. Stev., Kew Bull. 19 7 (1964)
Nomenclature
G. Stev.
G. Stev.
1964
7
ICN
Lepista muritai G. Stev. 1964
NZ holotype
species
Lepista muritai
Classification
Descriptions
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 muritai G. Stev. 1964
[Notes from Kew Type specimen, PRJ 2010] Baroni annotation "this is a good Lepista"
Lepista muritai G. Stev. 1964
Pileus 1.5-4 cm diam., light fuscous darker at centre, smooth, convex at first becoming broadly concave, margin strongly down-rolled; flesh fawn with a water soaked layer above the gills. Gills adnexed to adnate, thin, crowded, sordid pink. Stipe 1-1.5 cm x 2-3 mm, fuscous, striate, solid, rather tough, flesh continuous with that of cap, tapering slightly to base. Spores 6-8 x 3 µm, non-amyloid, slightly thickened walls, shallow nodulose (Fig. 1/13) P-10); print pale sordid pink. Cuticle of closely woven hyphae faintly pseudo-amyloid. Strong sour smell.
In moss under Nothofagus, Gatchpole, Wellington, 3.5.1958, Stevenson (type).
Pileus 1.5-4 cm diam., pallide (medio intensius) fuscus, laevis, primo convexus, deinde late concavus, margine valde deorsum revoluto; came hinnulea, strato aquoso supra lamellas sito. Lamellae adnexae usque adnatae, tenues, confertae, sordide puniceae. Stipes 1-1.5 cm x 2-3 mm, fuscus, striatus, solidus, subtenax, came cum pileo continua, basin versus leviter attenuatus. Sporae 6-8 x 3µm, haud amyloideae, parietibus leviter incrassatis inconspicue nodulosis (Fig. 1/13, p.10), in cumulo pallide sordide puniceae. Odor fortis, acidulus.
Typus: Stevenson 1321.
Taxonomic concepts
Lepista muritai G. Stev. 1964
Lepista muritai G. Stev. (1964)
Global name resources
Collections
Notes
taxonomic status
a nom. conf. for Horak, but consistent with recent collections. L. antipoda, L. panaeolus (=L. luscina) and L. muritai are part of a complex/variable taxon with little sequence variation [JAC]
typification
HABITAT: in moss under Nothofagus, Catchpole, Wellington, New Zealand, 3.5.1958, Stevenson 1321, holotype K(M)
Metadata
1cb1b431-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2000
14 December 2024