P. Sydow and W. Zopf [1-4900]
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USDA United States National Fungus Collections
Catalog #: BPI 1053857
P. Sydow #s. n. 00 October 1879
Erysiphe communis (Wallr.) Schltdl.
Germany, Berlin, Botanical Garden
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USDA United States National Fungus Collections
Catalog #: BPI 1029123
W. Zopf #s.n.
Erysiphe nitida (Wallr.) Rabenh.
Germany, Botanical Garden, Berlin
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