Tricholoma stiparophyllum    Fr.& N. Lund. 

common name(s) : Chemical Knight 

New classification: Basidiomycota/Agaricomycotina/Agaricomycetes/Agaricomycetidae/Agaricales/Tricholomataceae  
Former classification: Basidiomycota/Homobasidiomycetes/Agaricomycetideae/Tricholomatales/Tricholomataceae/Tricholomatoideae/Tricholomateae  

synonyms: Tricholoma pseudoalbum, Tricholoma album ss.Lge., Tricholoma lascivum ss.Rick. 

edibility : poisonous

photo gallery of  Tricholoma stiparophyllum
photo gallery of  Tricholoma stiparophyllum potential confusions with  Tricholoma stiparophyllum toxicity of Tricholoma stiparophyllum genus Tricholoma  

The cap is white, sometimes ochre towards centre, convex, then flattened, then eventually depressed at the centre, often with an obtuse umbo; its margin is furrowed (check with varying light incidence), sometimes slightly wavy. The cap surface is smooth, silky.

The stem is white, smooth, full, stained with ochre especially towards base, without ring.

The flesh is white, unchanging; its taste is bitter then acrid after a while; the odour is strong, unpleasant, earthy or of insecticide; its texture is fibrous.

The gills are white to cream or ochre-pink, emarginate to adnate, crowded and regular . The spore print is white. This species is mycorrhizal. It grows on the ground, in broad-leaved or mixed woods, on a rather calcareous or neutral soil, essentially with birch.

The fruiting period takes place from September to November.
Dimensions: width of cap approximately 9 cm (between 3 and 14 cm)
  height of stem approximately 9 cm (between 4 and 15 cm)
  thickness of stem (at largest section) approximately 15 mm (between 9 and 25 mm)

Chemical tests : flesh turns grey in 1mn upon exposure to sulfovanillin.

Distinctive features : white cap and stem, with ochre stains; cap with furrowed margin; gills white to ochre-pink, regular and crowded; bitter taste; strong earthy odour, unpleasant; with birch

Tricholoma stiparophyllum is infrequent and widely present in the forest of Rambouillet, and is occasional, more generally speaking .
here should be the distribution map of Tricholoma stiparophyllum in the forest of Rambouillet
Above : distribution map of Tricholoma stiparophyllum in the forest of Rambouillet

page updated on 14/01/18