P. Sydow and W. Zopf [1-4900]
USDA United States National Fungus Collections
P. Sydow #s. n. 00 October 1884
Erysiphe tuckeri Berk.
Germany, Wilmersdorf, Berlin
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USDA United States National Fungus Collections
P. Sydow #s.n. 00 October 1884
Uncinula necator (Schwein.) Burrill
Germany, Wilmensdorf by Berlin
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