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Cystoderma clastotrichum (G. Stev.) E. Horak 1971

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This is indigenous

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Cystoderma clastotrichum (G. Stev.) E. Horak, New Zealand J. Bot. 9 411 (1971)
Cystoderma clastotrichum (G. Stev.) E. Horak 1971

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Indigenous, non-endemic
Present
New Zealand
Political Region
Also present in Australia

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E. Horak
G. Stev.
(G. Stev.) E. Horak
1971
411
ICN
NZ holotype
species
Cystoderma clastotrichum

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clastotrichum

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Cystoderma clastotrichum (G. Stev.) E. Horak 1971

Baeospora clastotricha Stevenson (29 D) Fig. 3 = Cystoderma clastotrichum (Stevenson) comb. nov. (Basionym: B. clastotricha Stevenson, Kew Bull. 19: 56, 1964).

This is undoubtedly a member of the genus Cystoderma which is represented in New Zealand by more than four species, according to our present knowledge. Cuticle consists of an epithelium formed by oval or roundish cells, with clamp, connections. Spores oval, hyaline, smooth, amyloid, 3.5-4.5 X 2.5-3 µ. Cystidia none.

Omphalia ? anthiceps Berkeley and Curtis (8, 16) Fig. 2 = Cystoderma clastotrichum (Stevenson) Horak

The microscopical as well as macroscopical characters of the collection (COLENSO b 1023) correspond in all details with this common New Zealand species of Cystoderma, which was originally described as Baeospora clastotricha Stevenson (see there).

[Notes from Kew Type specimen, PRJ 2010] Kew have other Stevenson collections, GS 891, GS 853, GS 1114
Densely tufted ; pileus deeply umbilicate, often somewhat umbonate but the umbo sunk in the central depression, thin, even, glabrous, white, disc tinged brown, 1-1.5 cm. broad; gills adnato-decurrent, distant, rather broad, white ; spores subglobose, 4-5 µ diameter; stem 1-1.5 cm. long, slender, glabrous, white, hollow.
New Zealand. Cuba.
Densely caespitose, on decaying logs.
Distinguished by the much-crowded habit, and the white pileus having the centre depressed and tinged brown.
Pileus 1-3.5 cm. diam., ochraceous yellow, darker at centre, intensely velvety, plano-convex with down-rolled margin; flesh yellow. Gills adnate, creamy-white, thin, crowded. Stipe 3-7 x 0.2-0.4 cm., ochraceous yellow, paler and silky striate above, more or less clothed with cottony fibrils below, occasionally peronate, hollow, tough. Spores 5 x 3 µm, amyloid, thin-walled; print white. Hymenophoral trama and hyphae of tissues non-amyloid. Basidia with amyloid granulation. Cuticle of globe cells, 15-20 µm diam., with ochraceous yellow pigment, some becoming amyloid, covered by abundant hair-like chains fragmenting into cylindric cells, 3-4 µm broad and 4-8 µm long, some becoming amyloid, containing ochraceous yellow pigment (Fig. 34). Strong unpleasant smell.
On fallen wood or rooting' in litter in Nothofagus forest, Keith George Park, 15.6.1949 (Type); & 25-5-1952; Lowry Bay, 6.7.1949, Fringed Hill, Nelson, 3.6.1956; all Stevenson.
Pileus 1-3.5 cm diam., ochraceo-luteus (medio intensius), eximie velutinus, plano-convexus margine deorsum revoluto; caro lutea. Lamellae adnatae; cremeo-albae, tenues, confertae. Stipes 3-7 x 0.2-0.4 cm, ochraceo-luteus, superne pallidior sericeo-striatus, inferne fibrillis gossypinis plus minus obtectus, nonnunquam peronatus, cavus, tenax. Sporae 3.5 x 3 µm, amyloideae, parietibus tenuibus, in cumulo albae. Trama hymenophoralis et hyphae texturae; pilei haud amyloidea. Basidia amyloideo-granulata. Cuticula e cellulis globiformibus 15-20 µm diam., cum pigmento ochraceo-luteo, nonnullis amyloideis et praeterea e catenis copiosis capilliformibus in cellulas cylindricas fragmentatis 3-4 µm latas 4-8 µm longas nonnulis amyloideas pigmentum ochraceo- luteum in sese tenentes sistens. Odor fortis, ingratus.
Although the peronate collections appeared different from the smooth-stemmed ones macroscopically, some were intermediate in this respect; all agreed in microscopic characters and thus are treated as one species.
Typus: Stevenson 653.

Click to collapse Taxonomic concepts Info

Agaricus anthiceps sensu Colenso (1891) [1890]
Cystoderma clastotrichum (G. Stev.) E. Horak 1971
Baeospora clastotricha G. Stev. (1964)
Cystoderma clastotrichum (G. Stev.) E. Horak 1971
Cystoderma clastotrichum (G. Stev.) E. Horak 1971
Cystoderma clastotrichum (G. Stev.) E. Horak 1971
Cystoderma clastotrichum (G. Stev.) E. Horak 1971
Cystoderma clastotrichum (G. Stev.) E. Horak (1971)
Cystoderma clastotrichum (G. Stev.) E. Horak 1971
Cystoderma clastotrichum (G. Stev.) E. Horak (1971)
Cystoderma clastotrichum (G. Stev.) E. Horak 1971
Cystoderma clastotrichum (G. Stev.) E. Horak (1971)
Cystoderma clastotrichum (G. Stev.) E. Horak 1971
Cystoderma clastotrichum (G. Stev.) E. Horak (1971)
Cystoderma clastotrichum (G. Stev.) E. Horak 1971
Cystoderma clastotrichum (G. Stev.) E. Horak (1971)
Cystoderma clastotrichum (G. Stev.) E. Horak 1971
Cystoderma clastotrichum (G. Stev.) E. Horak (1971)
Cystoderma clastotrichum (G. Stev.) E. Horak 1971
Cystoderma clastotrichum (G. Stev.) E. Horak (1971)
Cystoderma clastotrichum (G. Stev.) E. Horak 1971
Cystoderma clastotrichum (G. Stev.) E. Horak 1971
Cystoderma clastotrichum (G. Stev.) E. Horak (1971)
Omphalia anthiceps sensu Massee (1899) [1898]
Cystoderma clastotrichum (G. Stev.) E. Horak 1971

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Cystoderma clastotrichum (G. Stev.) E. Horak 1971
[Not available]

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taxonomic status
Synonymy with C. simulatum is doubtful on biogeographic grounds, and morphology [JAC].

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1cb18629-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2000
15 December 2003
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