Hypoxylon multiforme    (Fr.) Fr. 

common name(s) : Birch Woodwart 

New classification: Ascomycota/Pezizomycotina/Sordariomycetes/Xylariomycetidae/Xylariales/Xylariaceae  
Former classification: Ascomycota/Hymenoascomycetes/Pyrenomycetideae  

synonyms: Hypoxylon crustaceum 
(unconfirmed synonyms: Annulohypoxylon multiforme, Hypoxylon atropurpureum)  

edibility : unknown edibility

potential confusions with  Hypoxylon multiforme toxicity of Hypoxylon multiforme genus Hypoxylon  

The fruiting body is spherical or cushion-shaped, assembled in large groups, red-brown then black, without stem.

The fertile surface is.

It grows on wood, on fallen branches of broad-leaved trees, on birch.

The fruiting period takes place all year long.
Dimensions: width of fruiting body approximately 0.8 cm (between 0.5 and 1 cm)

Distinctive features : fruiting body shaped like a crust of elongated and irregular cushions, brown then blackish; on dead birch wood branches

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



page updated on 14/01/18