Ascomyceten #1950
Rehm, Ascomyc.H. Rehm [1-2175, plus extras]
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USDA United States National Fungus Collections
Catalog #: BPI 560337
Dearness s.n. 00 October 1910
Erysiphe cichoracearum DC.
Canada, Ontario, London
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Cornell University Plant Pathology Herbarium
Catalog #: CUP-F-0866
J. Dearness #3161 00 October 1910
Erysiphe cichoracearum f. eupatorii
Canada, Ontario, London;
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