P. Sydow and W. Zopf [1-4900]
Iowa State University, Ada Hayden Herbarium
s.n. 00 September 1879
Erysiphe paeoniae R.Y. Zheng & G.Q. Chen
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USDA United States National Fungus Collections
W. Krieger #s. n. 00 September 1879
Erysiphe communis (Wallr.) Schltdl.
Germany, Ebenheit Lilienstein
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