Agrocybe firma    (Peck) Singer 



New classification: Basidiomycota/Agaricomycotina/Agaricomycetes/Agaricomycetidae/Agaricales/Strophariaceae  
Former classification: Basidiomycota/Homobasidiomycetes/Agaricomycetideae/Cortinariales/Bolbitiaceae  

edibility : unknown edibility

potential confusions with  Agrocybe firma toxicity of Agrocybe firma genus Agrocybe  

The cap is brown to dark olive brown (ochre cream when drying), matt and velvety, convex then flat, sometimes cracked; its margin is without veil remnants. The cap surface is smooth, not viscid nor sticky.

The stem is pale brownish (paler than the cap), roughly pruinose, without ring.

The flesh is red-brown, unchanging; its taste is bitter, mealy; the odour is mealy, especially when cut; its texture is fibrous.

The gills are ochre olive to beige brown, adnate, crowded (nb of gills per 90° ~ 18 ). The spore print is dark brown. This species is saprophytic. It grows on wood (on stumps, sticks and twigs), in moist broad-leaved woods, more often on high ground.

The fruiting period takes place from June to November.
Dimensions: width of cap approximately 3.5 cm (between 2 and 5 cm)
  height of stem approximately 7 cm (between 5 and 8 cm)
  thickness of stem (at largest section) approximately 5 mm (between 3 and 6 mm)

Distinctive features : slightly hygrophanous; stem paler than cap and entirely pruinose; cap surface pruinose to velvety when young; taste and smell mealy; on twigs

Agrocybe firma is still unreported so far in the forest of Rambouillet, and is quite rare, more generally speaking .



page updated on 14/01/18