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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0075424
J. Hruby #s.n. 00 September 1924
Peronospora sherardiae Fuckel
Czech Republic, Brünn in Mähren. Obran