Economic Fungi #A 7a
A.B. Seymour and F.S. Earle [1-550, plus extras]
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University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0032303
A. B. Seymour #s.n. 30 May 1891
Plasmopara obducens Schroet.
United States, Massachusetts, Medford; Middlesex Fells
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