Petrak, Fl. Bohem. Morav. Exs. PilzeF. Petrak [1-2575]
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University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0074979
s.n.
Peronospora affinis Rossmann
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USDA United States National Fungus Collections
Catalog #: BPI 786505
Petrak, F. s.n. 23 July 1922
Peronospora affinis Rossmann
Czechoslovakia, Mahr.-Weisskirchen, Hrabuvka
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