H.G. Winter [2601-3600, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 999362
s.n.
Cercospora dubia
Germany

Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0123427
Riess #s.n.
Cercospora dubia
Germany, Near Cassellas, Borussiae