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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0082932
F. Petrak #s.n. 30 July 1923
Seynesia pulchella E. Bommer, M. Rousseau & Sacc.
Czech Republic, Mähr-Weisskirchen: Hrabuvka

USDA United States National Fungus Collections
Catalog #: BPI 645118
Petrak F. s.n. 30 July 1923
Seynesia pulchella E. Bommer, M. Rousseau & Sacc.
Czechoslovakia, Hranice (Maehr.-weisskirchen), Hrabuvka

USDA United States National Fungus Collections
Catalog #: BPI 793785
Petrak, F. s.n. 17 April 1916
Synchytrium anomalum J. Schröt.
Czechoslovakia, Mahr.-Weisskirchen, Welka