Agaricales » Physalacriaceae

Cryptomarasmius

Cryptomarasmius T.S. Jenkinson & Desjardin, Mycologia 106(1): 91 (2014)

Etymology: Crypto- hidden, referring to the historical placement of sect. Hygrometrici hidden within the genus Marasmius, as well as to the tiny, often hidden basidiomes of representative species.

Basidiomes tiny, marcescent. Pileus less than 5 mm diam, convex, smooth to rugulose, rarely spinulose, even or striate, dry, usually darkly pigmented (yellowish brown, orangish brown, grayish brown, brown, dark brown), rarely pallid (yellowish white to tan). Lamellae vein-like to well developed, rarely absent and with smooth hymenophore, free to adnate, never collariate, remote to subdistant, pallid. Stipe central, rarely absent, wiry-filiform, tough, insititious, glabrous or pruinose, darkly pigmented at maturity (brown to dark brown or black); rhizomorphs usually absent, rarely present. Basidiospores ellipsoid to fusoid or lacrymoid, smooth, hyaline, inamyloid, thin-walled; white in deposit. Basidioles fusoid. Basidia fourspored. Pleurocystidia absent or present, lageniform to fusoid, unornamented. Cheilocystidia present, of Rotalis-type broom cells or lageniform to fusoid and nonornamented, often dimorphic. Pileipellis a hymeniform layer of Rotalis-type broom cells, rarely some cells lacking setulae, with or without scattered pileocystidia, rarely composed of chains of Rotalistype cells. Pileocystidia (when present) lageniform to fusoid, nonornamented or rarely with a few setulae centrally. Stipitipellis a cutis of roughened to verrucose or diverticulate (rarely smooth), thick-walled, darkly pigmented hyphae. Caulocystidia absent or present, as small outgrowths or terminal cells, cylindrical to fusoid, nonornamented. Setae absent. Hyphae inamyloid, with clamp connections. Solitary to scattered, usually on leafy debris or rarely on bark.

Index Fungorum number: IF561776

Type species: Cryptomarasmius corbariensis (Roum.) T.S. Jenkinson & Desjardin, Mycologia 106(1): 91 (2014)

 

Species

Cryptomarasmius aucubae (Neda) T.S. Jenkinson & Desjardin 2014

Cryptomarasmius corbariensis (Roum.) T.S. Jenkinson & Desjardin 2014

Cryptomarasmius crescentiae (Murrill) T.S. Jenkinson & Desjardin 2014

Cryptomarasmius dicandinus (Desjardin, Retn. & E. Horak) T.S. Jenkinson & Desjardin 2014

Cryptomarasmius exustoides (Desjardin & E. Horak) T.S. Jenkinson & Desjardin 2014

Cryptomarasmius fishii (G. Stev. & G.M. Taylor) T.S. Jenkinson & Desjardin 2014

Cryptomarasmius ilicis (Singer) T.S. Jenkinson & Desjardin 2014

Cryptomarasmius kroumirensis (Pat.) T.S. Jenkinson & Desjardin 2014

Cryptomarasmius magnoliae (Singer) T.S. Jenkinson & Desjardin 2014

Cryptomarasmius micraster (Petch) T.S. Jenkinson & Desjardin 2014

Cryptomarasmius minutus (Peck) T.S. Jenkinson & Desjardin 2014

Cryptomarasmius paucilamellatus (Desjardin & E. Horak) T.S. Jenkinson & Desjardin 2014

Cryptomarasmius rhopalostylidis (Desjardin & E. Horak) J.A. Cooper 2014

Cryptomarasmius sphaerodermus (Speg.) T.S. Jenkinson & Desjardin 2014

Cryptomarasmius thwaitesii (Berk. & Broome) T.S. Jenkinson & Desjardin 2014

 

Reference:

Jenkinson T.S., Perry B.A., Schaefer R.E., Desjardin D.E. 2014. Cryptomarasmius gen. nov. is established in the Physalacriaceae to accommodate members of Marasmius section Hygrometrici. Mycologia. 106(1): 86–94.

 

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