Ascomyceten #2000
Rehm, Ascomyc.H. Rehm [1-2175, plus extras]
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USDA United States National Fungus Collections
Catalog #: BPI 604638
Dearness s.n. 00 August 1911
Sphaerotheca humuli var. rubi
Canada, Ontario, London
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Cornell University Plant Pathology Herbarium
Catalog #: CUP-F-2219
John Dearness #3495 00 August 1911
Sphaerotheca humuli (DC.) Burrill
Canada, Ontario, Middlesex, London;
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