J. Eriksson [1-500]
USDA United States National Fungus Collections
Wille N. s.n. 14 September 1890
Erysiphe communis (Wallr.) Schltdl.
Norway
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USDA United States National Fungus Collections
Wille, N. s.n. 11 September 1890
Erysiphe martii Lév.
Norway, Ås;
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