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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0068846
F. Petrak #s.n. 00 August 1913
Didymosporium petrakianum Sacc.
Czech Republic, Mähr-Weisskirchen: Betschwa-Ufer

USDA United States National Fungus Collections
Catalog #: BPI 402822
Petrak F. s.n. 00 August 1913
Didymosporium petrakianum Sacc.
Czechoslovakia, Moravia, Hranice (Maehr.-weisskirchen), Becva (Betschwa) Riverbank