Tricholoma portentosum    (Fr.:Fr.) Quél. 

common name(s) : Coalman, Pretentious Tricholoma 

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

synonyms: Agaricus portentosus 

edibility : edible

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

The cap is pale grey to dark grey, with shades of violet or greenish, conical then expanded, with a broad umbo. The cap surface is smooth, viscid when damp.

The stem is white, often washed with lemon yellow, twisted and more or less rooting, without ring.

The flesh is white, tainted with yellow or violaceous under the cap surface, unchanging; its taste is mealy; the odour is mealy; its texture is fibrous.

The gills are white, stained with yellow or green, emarginate, distant . The spore print is white. This species is mycorrhizal. It grows on the ground, more frequently in coniferous woods, on a rather acid or hardly calcareous soil, with pine, spruce, oak, beech.

The fruiting period takes place from July to December.
Dimensions: width of cap approximately 9 cm (between 3 and 15 cm)
  height of stem approximately 8 cm (between 3 and 12 cm)
  thickness of stem (at largest section) approximately 15 mm (between 10 and 25 mm)

Chemical tests : none.

Distinctive features : grey to dark grey cap, with radiating streaks and greenish or yellowish shades; gills white then yellowish; odour and taste of meal; stem washed lemon yellow in some places, often buried deep in the soil; more often with conifers

Tricholoma portentosum is quite rare and localised in the forest of Rambouillet, and is occasional, more generally speaking .
here should be the distribution map of Tricholoma portentosum in the forest of Rambouillet
Above : distribution map of Tricholoma portentosum in the forest of Rambouillet

page updated on 14/01/18