Tyromyces chionius (Fr.) P. Karst.
"White Cheese Polypore” is a white rotter associated with hardwoods. ’ Chioneus’ means ‘snow’. This polypore has a white upper surface, flesh and pore surface that ages pale yellowish. When fresh, it is soft and feels like mozzarella cheese. It has a pleasant smell and mild taste, though it is not considered edible. Its favored host is dead birch logs and branches. It is most common in autumn. According to a recent phylogenetic analysis, Tyromyces does not belong in any of the lineages of the Polyporales - so we shouold expect this genus to be moved into another order.*
Phylogenetic and phylogenomic overview of the Polyporales(Link), Mycologia, November 2013
