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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0075551
J. Hruby #s.n. 00 April 1931
Peronospora omphalodis Gäum.
Czech Republic, Auspitz in Mähren