Petrak, Fl. Bohem. Morav. Exs. PilzeF. Petrak [1-2575]
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University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0068243
F. Petrak #s.n. 02 December 1923
Cytospora ambiens (Nitschke) Sacc.
Czech Republic, Mähr-Weisskirchen: Usti
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USDA United States National Fungus Collections
Catalog #: BPI 364530
Petrak F. s.n. 02 December 1923
Cytospora ambiens f. alni
Czechoslovakia, Hranice (Maehr.-weisskirchen), Usti
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