Coprinellus radians Scientific name: Coprinellus radians & x28;Desm.& x29; Vilgalys, Hopple & Jacq. Johnson Derivation of name: Copr- means & x22;dung& x22; and ellus is diminutive. Radians means either 1& x29; with rays or spokes or 2& x29; radiant. Synonyms: Coprinus radians & x28;Desm.& x29; Fr. Common name& x28;s& x29;: Orange-mat coprinus Phylum: Basidiomycota Order: Agaricales Family: Psathyrellaceae Occurrence on wood substrate: Saprobic; single or scattered or in small groups on wet wood; May through October. Dimensions: Caps 2-3 cm wide; stipes 2.5-7.5 cm tall and 1.5-5 mm thick. Cap: Tawny-brown to yellowish-orange; covered with evanescent, brownish mealy particles. Gills: Attached or almost free; white, becoming black and liquefying & x28;inky& x29; Spore print: Black. Stipe: White, fragile, hollow and arising from a mat of yellow- orange mycelium on top of the wood. Veil: Universal veil breaking up as mealy particles & x28;scales& x29; on the cap. Edibility: Unknown Comments: This species is found not only outdoors on wet and rotting wood but also indoors on wet wood in basements and bathrooms. Sometimes the orange mycelium is found without the fruitbody. This species used to be in the genus Coprinus but DNA studies & x28;see Redhead, S. A., et al. 2001& x29; radically revised the taxonomy of that genus: Coprinus was retained for a small number of species, several new genera were created, and the members of the family Coprinaceae were split between two families - Psathyrellaceae and Agaricaceae.

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