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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0085631
R. Picbauer #s.n. 00 May 1923
Ustilago major J. Schröt.
Czech Republic, Mähren: Pollauer Berge