Petrak, Fl. Bohem. Morav. Exs. PilzeF. Petrak [1-2575]
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University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0086216
F. Petrak #s.n. 00 August 1913
Valsa populina (Pers.) Fuckel
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USDA United States National Fungus Collections
Catalog #: BPI 574962
Petrak F. s.n. 00 August 1913
Valsa populicola G. Winter
Czechoslovakia, Hranice (Maehr.-weisskirchen), Betschwa-Ufer
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