Petrak, Fl. Bohem. Morav. Exs. PilzeF. Petrak [1-2575]
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University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0068984
F. Petrak #s.n. 00 October 1924
Didymella autumnalis Petr.
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USDA United States National Fungus Collections
Catalog #: BPI 610857
Petrak F. s.n. 08 October 1924
Didymella autumnalis Petr.
Czechoslovakia, Hranice (Maehr.-weisskirchen), Hrabuvka
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