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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0077689
s.n.
Protomyces pachydermus Thüm.

USDA United States National Fungus Collections
Catalog #: BPI 678506
Jahn J. s.n. 16 August 1916
Protomyces pachydermus Thüm.
Czechoslovakia, Bohemia, Konradsgruen