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Gymnopus vinaceus (G. Stev.) J.A. Cooper & P. Leonard 2012

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Gymnopus vinaceus (G. Stev.) J.A. Cooper & P. Leonard 2012
Gymnopus vinaceus (G. Stev.) J.A. Cooper & P. Leonard 2012

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Uncertain
Present
New Zealand
Political Region

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(G. Stev.) J.A. Cooper & P. Leonard
G. Stev.
J.A. Cooper & P. Leonard
2012
1
ICN
species
Gymnopus vinaceus

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vinaceus

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[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.

Crinipellis vinacea Stevenson (29 D) Fig. 27 = Collybia vinacea (Stevenson) comb. nov. Basionym: C. vinacea Stevenson, Kew Bull. 19: 44, 1964)

Spores elliptical, hyaline, neither amyloid nor dextrinoid, smooth, 7-8.5 X 3.5-4 µ. Cheilocystidia numerous, fusoid or ampullaceous, thin-walled, 25-40 X 5-9 µ. Cheiocystidia 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.

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, appressed-fibrillose, 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.
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 3-4 µm. non-amyloid, thin-walled; print white. Hymenophoral trama non-amyloid. Cuticle of loosely woven hyphae 5-8 µm diam., with clamp connections, and with irregular amyloid to pseudo-amyloid thickenings.
In litter and on fallen rotting log, Wakapuaka, Nelson, 14.4.1956, Stevenson (type).
Pileus 1-2.5 cm diam., vinaceo-brunneus, plano-convexus, deinde late concavus cum margine undulato striato subsulcato, tenuiter fibrillosus; caro tenuis, vinaceo-brunnea. Lamellae adnexae usque adnatae, pallide vinaceae, modice distantes. Stipes 2-3 cm x 1-2 mm, superne vinaceus, basin versus atro-vinaceus, squamis tenuibus fibrillosis adspersus, tenax, cavus. Sporae 7-8 x 3-4 µm, haud amyloideae, parietibus tenuibus, in cumulo albae. Trama hymenophoralis haud amyloidea. Cuticula ex hyphis laxe intertextis 5-8 µm diam., cum fibulis, et irregulariter amyloideo-vel pseudo-amyloideo-incrassatis sistens
Typus: Stevenson 1029.

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Collybia vinacea (G. Stev.) E. Horak 1971
Collybia vinacea (G. Stev.) E. Horak 1971
Gymnopus vinaceus (G. Stev.) J.A. Cooper & P. Leonard 2012
Crinipellis vinacea G. Stev. 1964
Gymnopus vinaceus (G. Stev.) J.A. Cooper & P. Leonard 2012
Gymnopus vinaceus (G. Stev.) J.A. Cooper & P. Leonard 2012
Gymnopus vinaceus (G. Stev.) J.A. Cooper & P. Leonard
Gymnopus vinaceus (G. Stev.) J.A. Cooper & P. Leonard 2012

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taxonomic status
Kerekes et al examined the holotype and decided it contained two species , one with a glabrous stipe and one with a pruinose stipe. Reexamination shows the dark capped species may represent G. ceraceicola. However the material is inseparable and best treated as a nom. conf. [JAC]

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84a75115-489d-439e-87e6-547452612161
scientific name
Names_Fungi
24 January 2012
24 January 2012
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