A.B. Seymour and F.S. Earle [1-550, plus extras]
Iowa State University, Ada Hayden Herbarium
R.A. Harper #s.n. 17 September 1892
Sphaerotheca fusca (Fr.) S. Blumer
USA, Illinois, Lake Forest;
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Louisiana State University, Bernard Lowy Mycological Herbarium
Robert A. Harper #s.n. 17 September 1892
Sphaerotheca castagnei Lév.
United States, Illinois, Lake, Lake Forest
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