Marasmius druceae G. Stev. 1964
Details
Marasmius druceae G. Stev., Kew Bull. 19 40 (1964)
Nomenclature
G. Stev.
G. Stev.
1964
40
as 'drucei'
ICN
Marasmius druceae G. Stev. 1964
NZ holotype
species
Marasmius druceae
Classification
Associations
Descriptions
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 druceae G. Stev. 1964
[Notes from Kew Type specimen, PRJ 2010] Other collections at K Stevenson GS 1289
Marasmius druceae G. Stev. 1964
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. Spores 8 x 4µm, non-amyloid, thin-walled (Fig. 24). Print white. Cuticle cellular of a faintly pseudo-amyloid palisade overlying woven pseudo-amyloid hyphae 5-8 µm diam.
On old Cyathea medullaris stump, Wellington Botanic Garden, 26.4.1949, Stevenson (type); on Nothofagus litter, Silverstream, 21.4.1958, H. Druce.
Pileus 1-4.5 cm-diam., pallide testaceus, (medio fuscius), marginibus substriatus et sulcatus, plano-convex usque planus, margine undulato, velutinus; came subpunicea tenaci. Lamellae adnexae, modice distantes puniceo-hinnuleae, marginibus serrulatis pallidioribus. Stipes 2-4 cm x 2-4 mm, pallide puniceo-bubalinus, velutinus, cavus, modice tenax. Sporae 8 x 4 µm, haud amyloideae, parietibus tenuibus, in cumulo albae. Cuticula cellularis, e sepimento aegre pseudo-amyloideo hyphis intertextis pseudo-amyloideis 5-8 µm diam. incumbente sistens.
Typus: Stevenson 592.
Taxonomic concepts
Marasmius druceae G. Stev. 1964
Marasmius druceae G. Stev. 1964
Marasmius druceae G. Stev. 1964
Marasmius druceae G. Stev. (1964)
Global name resources
Collections
Notes
taxonomic status
Examination of the type shows it has partially dextrinoid spores and the morphology of R. purpurata. [JAC]
typification
HABITAT: on old Cyathea medullaris stump, [New Zealand], Wellington Botanic Garden, 26.4.1949, Stevenson 592, K
Metadata
1cb1b479-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
25 August 1997
5 March 2015