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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0081512
F. Petrak #s.n. 05 September 1922
Ramularia sagittariae Bres.
Czech Republic, Mähr-Weisskirchen: Leipnik