Petrak, Mycoth. Carp.
Petrak, F. [1-475]
IndExs #641513049

Charles Gardner Shaw Mycological Herbarium, Washington State University
Catalog #: WSP38561
F. Petrak s.n. 00 June 1923
Peronospora radii de Bary
Czech Republic, Werd-Berkiden; Wagromder be Wsetin

USDA United States National Fungus Collections
Catalog #: BPI 790576
Petrak, F. s.n. 00 June 1923
Peronospora radii de Bary
Czechoslovakia, West Beskids, Vsetin