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

University of Michigan Herbarium
Catalog #: 147913
F. Petrak #s. n. 02 October 1911
Polyporus adustus (Willd.) Fr.
Austria, M. Weisskirchen: Ludinabach.

USDA United States National Fungus Collections
Catalog #: BPI 201267
Petrak F. s.n. 02 October 1911
Polyporus adustus (Willd.) Fr.
Czechoslovakia, Hranice (Weisskirchen), Ludina