Psilocybe semilanceata    (Fr.:Fr.) P. Kumm. 

common name(s) : Liberty Cap, Magic Mushroom 

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

synonyms: Agaricus semilanceatus 
(unconfirmed synonyms: Panaeolus semilanceatus)  

edibility : poisonous

potential confusions with  Psilocybe semilanceata toxicity of Psilocybe semilanceata genus Psilocybe  

The cap is olive yellowish, with a central umbo. The cap surface is smooth, viscid or sticky.

The stem is yellowish, without ring.

The flesh is cream to yellowish, unchanging; its taste is mild; the odour is faint, of grass or radish; its texture is fibrous.

The gills are pale clay then blackish purple red, adnate, crowded . The spore print is purple brown. This species is saprophytic. It grows on the ground, on a rather acid soil.

The fruiting period takes place from July to December.
Dimensions: width of cap approximately 1.5 cm (between 0.5 and 2 cm)
  height of stem approximately 7 cm (between 2.5 and 12 cm)
  thickness of stem (at largest section) approximately 1.5 mm (between 1 and 3 mm)

Chemical tests : none.

Distinctive features : Brown to ochre cap, hygrophanous, shaped like an elf hat, covered with a detachable slimy film; sometimes turning blue when touched; brown to blackish gills, with a white edge; blue-green stem base; in rich grassy areas : meadows, pastures, lawns

Psilocybe semilanceata is rare and confined in the forest of Rambouillet, and is occasional, more generally speaking .
here should be the distribution map of Psilocybe semilanceata in the forest of Rambouillet
Above : distribution map of Psilocybe semilanceata in the forest of Rambouillet

page updated on 14/01/18