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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0075330
F. Petrak #s.n. 30 June 1924
Peronospora borealis Gäum.
Czech Republic, Leipnik in Mähren. Podhura