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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0086423
s.n.
Wettsteinina ambigua Petr.

USDA United States National Fungus Collections
Catalog #: BPI 372684
Petrak F. s.n. 28 September 1923
Wettsteinina ambigua Petr.
Czechoslovakia, Moravia, Hranice (Maehr.-weisskirchen), Hrabuvka