P.A. Saccardo [1-1600]
USDA United States National Fungus Collections
s.n. 00 September 1874
Sphaerotheca humuli var. fuliginea (Schltdl.) E.S. Salmon
Italy, Peschiera (Verona)
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USDA United States National Fungus Collections
s.n.
Sphaerotheca castagnei Lév.
Italy
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