Economic Fungi #A7a
A.B. Seymour and F.S. Earle [1-550, plus extras]
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University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00062201
A. B. Seymour s.n. 30 May 1891
Peronospora obducens J. Schröter
United States, Massachusetts, Medford; Middlesex Fells
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Michigan State University Herbarium non-lichenized fungi
Catalog #: MSC0214833
A. B. Seymour s.n. 30 May 1891
Peronospora obducens J. Schröter
United States, Massachusetts, Medford; Middlesex Falls
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Charles Gardner Shaw Mycological Herbarium, Washington State University
Catalog #: WSP28989
A.B. Seymour s.n. 30 May 1891
Peronospora obducens J. Schröter
United States, Massachusetts, Middlesex Fells, Medford
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