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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0066682
F. Petrak #s.n. 02 September 1923
Cercospora radiata Fuckel
Czech Republic, Hochgesenke: Ob.-Mohratal