P. Sydow and W. Zopf [1-4900]
Miami University, Willard Sherman Turrell Herbarium
P. Sydow #589 00 June 1885
Peronospora parasitica (Pers.) Fr.
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USDA United States National Fungus Collections
P. Sydow #s. n. 00 July 1884
Helotium urticae (Pers.) P. Karst.
Germany, Berlin
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