Rugosomyces ionides    (Bull.:Fr.) Bon 

common name(s) : Violet Domecap 

New classification: Basidiomycota/Agaricomycotina/Agaricomycetes/Agaricomycetidae/Agaricales/Lyophyllaceae  
Former classification: Basidiomycota/Homobasidiomycetes/Agaricomycetideae/Tricholomatales/Tricholomataceae/Lyophylloideae/Lyophylleae  

synonyms: Tricholoma ionides, Calocybe ionides, Lyophyllum ionides 
(unconfirmed synonyms: Calocybe jonides)  

edibility : discard

photo gallery of  Rugosomyces ionides
photo gallery of  Rugosomyces ionides potential confusions with  Rugosomyces ionides toxicity of Rugosomyces ionides genus Rugosomyces  

The cap is lilac-blue to violet-blue, with a darker centre and sometimes with a tinge of brown, convex then flattened, without any umbo, or broadly umbonate; its margin is lighter in colour, striate then smooth. The cap surface is smooth, finely felty, matt, not viscid nor sticky.

The stem is viloet-blue like the cap, whitish at the very top, cylindrical and hollow, without ring.

The flesh is whitish to pale lilac at stem base, unchanging; its taste is mild, mealy; the odour is mealy; its texture is fibrous.

The gills are white to cream, contrasting with the cap, adnate to emarginate, thin and crowded . The spore print is white. This species is saprophytic. It grows on the ground, in broad-leaved or coniferous woods, on humus-rich or calcareous soils, on a rather calcareous or rich with humus soil.

The fruiting period takes place from July to November.
Dimensions: width of cap approximately 5 cm (between 2 and 6 cm)
  height of stem approximately 5 cm (between 3 and 8 cm)
  thickness of stem (at largest section) approximately 8 mm (between 3 and 14 mm)

Chemical tests : none.

Distinctive features : viloet-blue cap, contrasting with the white to cream crowded gills; stem concolorous to cap, but white at the very top; on damp and humus-rich soils of coniferous or deciduous forests

Rugosomyces ionides is rare and confined in the forest of Rambouillet, and is quite rare, more generally speaking .
here should be the distribution map of Rugosomyces ionides in the forest of Rambouillet
Above : distribution map of Rugosomyces ionides in the forest of Rambouillet



page updated on 14/01/18