Mycena polygramma    (Bull.:Fr.) Gray 

common name(s) : Grooved Bonnet, Stripe-stemmed Mycena 

New classification: Basidiomycota/Agaricomycotina/Agaricomycetes/Agaricomycetidae/Agaricales/Mycenaceae  
Former classification: Basidiomycota/Homobasidiomycetes/Agaricomycetideae/Tricholomatales/Marasmiaceae/Collybieae  

edibility : discard

photo gallery of Mycena polygramma
photo gallery of Mycena polygramma potential confusions with Mycena polygramma toxicity of Mycena polygramma genus Mycena  

The cap is silver grey (in dry weather), dark grey to grey-brown, sometimes with olive shades, with a central umbo. The cap surface is smooth, not viscid nor sticky.

The stem is silver grey to brown-grey, without ring.

The flesh is white, unchanging; its taste is mild then slightly acrid; the odour is not distinctive; its texture is fibrous.

The gills are whitish grey, adnate, distant . The spore print is white. This species is saprophytic. It grows on dead wood.

The fruiting period takes place from July to December.
Dimensions: width of cap approximately 3.5 cm (between 1 and 6 cm)
  height of stem approximately 9 cm (between 2 and 20 cm)
  thickness of stem (at largest section) approximately 3 mm (between 1 and 5 mm)

Chemical tests : none.

Distinctive features : stem with longitudinal streaks; silvery colour

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



page updated on 14/01/18