Petrak, Fl. Bohem. Morav. Exs. PilzeF. Petrak [1-2575]
University of Wisconsin-Madison Herbarium
F. Petrak #s.n. 28 April 1925
Atopospora betulina (Fr.) Petr.
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USDA United States National Fungus Collections
Petrak F. s.n. 28 April 1925
Euryachora betulina (Fr.) J. Schröt.
Germany, Hranice (Maehr.-weisskirchen), Hrabuvka
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