A.B. Seymour and F.S. Earle [1-550, plus extras]
Iowa State University, Ada Hayden Herbarium
R. Thaxter s.n.
Cercospora polygonorum Cooke
USA, Connecticut, Meriden;
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Louisiana State University, Bernard Lowy Mycological Herbarium
Roland Thaxter #s.n.
Cercospora polygonorum Cooke
United States, Connecticut, New Haven, Meriden
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