Petrak, Fl. Bohem. Morav. Exs. Pilze
F. Petrak [1-2575]

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0077390
J. Hruby #s.n. 00 December 1918
Polyporus amorphus Fr.
Czech Republic, Weidenau in Öst-Schlesien