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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0073962
F. Petrak #s.n. 00 October 1925
Peronospora effusa (Greville) Rabenhorst
Czech Republic, Mährisch-Weisskirchen: Garten