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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0086139
F. Petrak #s.n. 02 December 1923
Valsa ambiens (Pers.) Fr.
Czech Republic, Mähr-Weisskirchen: Usti