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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0074203
s.n.
Myxophacidium degenerans (P. Karst.) Höhn.

USDA United States National Fungus Collections
Catalog #: BPI 674468
Petrak F. s.n. 30 April 1923
Pseudophacidium degenerans (Kunze) P. Karst.
Czechoslovakia, Hranice (Maehr.-weisskirchen), Bartelsdorf