A.B. Seymour and F.S. Earle [1-550, plus extras]
Iowa State University, Ada Hayden Herbarium
B.D. Halsted #s.n. 01 September 1892
Sphaerotheca fusca (Fr.) S. Blumer
USA, New Jersey, New Brunswick;
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Louisiana State University, Bernard Lowy Mycological Herbarium
Byron D. Halsted #s.n. 01 September 1892
Sphaerotheca castagnei Lév.
United States, New Jersey, Middlesex, New Brunswick
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