Psathyrella spadicea    (P. Kumm.) Singer 

common name(s) : Chestnut Brittlestem 

New classification: Basidiomycota/Agaricomycotina/Agaricomycetes/Agaricomycetidae/Agaricales/Psathyrellaceae  
Former classification: Basidiomycota/Homobasidiomycetes/Agaricomycetideae/Agaricales/Coprinaceae  

synonyms: Homophron spadiceum, Psathyrella sarcocephala ss.Lge, Psathyrella variata, Drosophila spadicea 
(unconfirmed synonyms: Psilocybe spadicea)  

edibility : discard

photo gallery of  Psathyrella spadicea
photo gallery of  Psathyrella spadicea potential confusions with  Psathyrella spadicea toxicity of Psathyrella spadicea genus Psathyrella  

The cap is red brown to flesh brown, convex or irregularly flat; its margin is non striate. The cap surface is smooth, not viscid nor sticky.

The stem is white, fibrillose, smooth, without ring.

The flesh is pale, concolorous to skin or cream, unchanging; its taste is mild; the odour is faint; its texture is fibrous.

The gills are white, then beige with salmon pink shades, then eventually brown, free to emarginate or adnate, fairly crowded . The spore print is very dark brown. This species is saprophytic. It grows on dead wood, in tufts, on stumps or at the base of broad-leaved trees and sometimes of conifers, alive or dead, (elm, chestnut…).

The fruiting period takes place from October to December.
Dimensions: width of cap approximately 6 cm (between 2 and 10 cm)
  height of stem approximately 6 cm (between 2 and 12 cm)
  thickness of stem (at largest section) approximately 8 mm (between 1 and 15 mm)

Chemical tests : none.

Distinctive features : red-brown to chocolate brown cap, hygrophanous, turning clayish-brown when dry, with a non striate margin and without traces of veil; reddish-brown gills; in tufts

Psathyrella spadicea is quite rare and scattered in the forest of Rambouillet, and is occasional, more generally speaking .
here should be the distribution map of Psathyrella spadicea in the forest of Rambouillet
Above : distribution map of Psathyrella spadicea in the forest of Rambouillet

page updated on 14/01/18