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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0070663
F. Petrak #s.n. 19 June 1917
Gnomonia tetraspora G. Winter
Czech Republic, Mähr-Weisskirchen: Hrabuvka