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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0072619
F. Petrak #s.n. 03 September 1923
Marssonina violae (Pass.) Magnus
Czech Republic, Hochgesenke: Gr. Kessel.