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

University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0084600
s.n.
Uromyces ambiguus

USDA United States National Fungus Collections
Catalog #: BPI 000581
Picbauer R. s.n. 00 May 1921
Uromyces ambiguus
Czechoslovakia, Moravia: Brno