The detailed description and data on geographic distribution in Europe are given of a very rare resupinate polypore Amyloporia sitchensis (Baxt.) Vampola et Pouzar comb. nov. The distinguishing features of two closely related species, Amyloporia crassa (P. Karst.) Domaň. and Amyloporia sordida (Ryv. et Gilberts.) Vampola et Pouzar comb. nov., are discussed.
Vampola P., Pouzar Z. (1993): Contribution to the knowledge of a rare resupinate polypore Amyloporia sitchensis. – Česká Mykologie 46(3-4): 213–222.