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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0068241
J. Petrak #s.n. 26 October 1914
Cytospora ambiens Sacc.
Czech Republic, Mähr-Weisskirchen: Mil.-Oberrealschule

USDA United States National Fungus Collections
Catalog #: BPI 364469
Petrak J. s.n. 26 October 1914
Cytospora ambiens Sacc.
Czechoslovakia, Hranice (Maehr.-weisskirchen) Military Academy