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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0066006
F. Petrak #s.n. 10 May 1923
Ascophanus holmskjoldii E.C. Hansen
Czech Republic, Mähr-Weisskirchen: Bartelsdorf