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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0069299
F. Petrak #s.n. 00 October 1923
Discula microsperma (Berk. & Broome) Sacc.
Czech Republic, Mähr-Weisskirchen, Hrabuvka