H.G. Winter [2601-3600, plus extras]
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USDA United States National Fungus Collections
Catalog #: BPI 999362
s.n.
Cercospora dubia
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Iowa State University, Ada Hayden Herbarium
Catalog #: ISC-F-0123427
Riess #s.n.
Cercospora dubia
Germany, Near Cassellas, Borussiae
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