Fungi Columbiani #132a
J.B. Ellis, B.M. Everhart, and E. Bartholomew [1501-5100, plus extras]
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Cornell University Plant Pathology Herbarium
Catalog #: F.Columbiani-0132a
J. Dearness #NAF 209 00 June 1893
Peronospora halstedii Farlow
Canada, Ontario, London;
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