Stropharia aeruginosa    (Curtis:Fr.) Quél. 

common name(s) : Verdigris Roundhead, Verdigris Agaric, Verdgris Agaric 

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

synonyms: Hypholoma aeruginosum, Psilocybe aeruginosa, Agaricus aeruginosus 

edibility : discard

photo gallery of  Stropharia aeruginosa
photo gallery of  Stropharia aeruginosa potential confusions with  Stropharia aeruginosa toxicity of Stropharia aeruginosa genus Stropharia  

The cap is blue-green to emerald green then yellowish, hemispherical then convex and ultimately flattened, often with an obtuse umbo; its margin is inrolled for a long time, with white flakes overhanging in the youth. The cap surface is covered with short-lasting white flakes, especailly towards the margin, viscid, sticky when dry, entirely peelable.

The stem is white to greenish-blue, with white erect whitish scales on a blueish background under the ring, smooth above it, and often with white mycelial strands at its base, with a membranous, superior and spreading ring.

The flesh is whitish (cap) to blue-green (stem base), unchanging; its taste is faint, sometimes slightly bitter; the odour is faint, of old barrel, radish or grassy; its texture is fibrous.

The gills are white then purple grey then brown, with a white edge for a long time, adnate to emarginate, crowded (nb of gills per 90° ~ 28 ). The spore print is purple brown. This species is saprophytic. It grows on the ground, sometimes also on buried wood, in the woods, forest edges, parks and paths.

The fruiting period takes place from June to December.
Dimensions: width of cap approximately 6 cm (between 2 and 10 cm)
  height of stem approximately 7 cm (between 3 and 12 cm)
  thickness of stem (at largest section) approximately 8 mm (between 4 and 12 mm)

Chemical tests : none.

Distinctive features : blueish-green viscid cap, with whitish short-lived cottony scales, especially near margin; stem with ample membranous superior ring, covered with whitish cottony scales on a blue-green background below; on the ground or on buried decayed wood

Stropharia aeruginosa is infrequent and scattered in the forest of Rambouillet, and is frequent, more generally speaking .
here should be the distribution map of Stropharia aeruginosa in the forest of Rambouillet
Above : distribution map of Stropharia aeruginosa in the forest of Rambouillet



page updated on 14/01/18