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

USDA United States National Fungus Collections
Catalog #: BPI 246179
Petrak s.n. 00 October 1914
Trametes gibbosa (Pers.) Fr.
Czechoslovakia, Hranice (Maehvisch Weisskirchen), on the Road between Hastopece and Lhotka

USDA United States National Fungus Collections
Catalog #: BPI 618866
Petrak F. s.n. 24 February 1912
Delitschia auerswaldii Fuckel
Czechoslovakia, Hranice (Maehr.-weisskirchen), Hrabuvka