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

Wisconsin State Herbarium, Fungi
Catalog #: WIS-F-0071092
F. Petrak #s.n. 00 April 1914
Humaria petrakii Sacc.
Czech Republic, Mähr-Weisskirchen: Hrabuvka