Petrak, Fl. Bohem. Morav. Exs. PilzeF. Petrak [1-2575]
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USDA United States National Fungus Collections
Catalog #: BPI 790862
Petrak, F. s.n. 28 June 1923
Peronospora scleranthi Rabenhorst
Czechoslovakia, Mah.r-Weisskirchen, Hrabuvka
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