Geastrum fornicatum    (Huds.) Hook. 

common name(s) : Arched Earthstar 

New classification: Basidiomycota/Agaricomycotina/Agaricomycetes/Phallomycetidae/Geastrales/Geastraceae  
Former classification: Basidiomycota/Homobasidiomycetes/Gasteromycetideae/Lycoperdales/Gaestraceae  

edibility : inedible

potential confusions with  Geastrum fornicatum toxicity of Geastrum fornicatum genus Geastrum  

The fruiting body is star-shaped, with 4 pointed rays, long and narrow, their tip connected to the tip of 4 other rays lying on the ground, smaller and larger (like a vault), and at its centre, a brown spore sac placed on top of a short stalk, brown, with a very short stem.

The fertile surface is internal: the spores are released as dust when mature. The spore print is black-brown.

It grows on the ground, in broad-leaved and coniferous woods, on sandy soils.

The fruiting period takes place from August to December.
Dimensions: width of fruiting body approximately 3.5 cm (between 1 and 8.5 cm)
  total height approximately 2 cm (between 1 and 3 cm)

Distinctive features : sorry, no English description yet

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



page updated on 14/01/18