F. Petrak [1-300]
USDA United States National Fungus Collections
Eichler G. s.n. 00 August 1905
Erysiphe polygoni DC.
Czechoslovakia, Teplitz
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University of Wisconsin-Madison Herbarium
G. Eichler #s.n. 00 August 1905
Erysiphe umbelliferarum (Lév.) de Bary
Germany, Teplitz
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