C.F. Holl, J.C. Schmidt, and G. Kunze [1-225]
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USDA United States National Fungus Collections
Catalog #: BPI 134436
s.n.
Coleosporium petasitis (DC.) de Bary
Germany
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USDA United States National Fungus Collections
Catalog #: BPI 974347
s.n.
Uredo petasitidis DC.
Germany
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