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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0081721
F. Petrak #s.n. 26 September 1923
Septoria aceris (Lib.) Berk. & Broome
Czech Republic, Mähr-Weisskirchen: Podhorn