Petrak, Fl. Bohem. Morav. Exs. PilzeF. Petrak [1-2575]
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University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0074551
F. Petrak #s.n. 03 September 1923
Herpotrichia nigra R. Hartig
Czech Republic, Hochgesenke: Gr. Kessel
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USDA United States National Fungus Collections
Catalog #: BPI 624712
Petrak F. s.n. 03 September 1923
Herpotrichia nigra R. Hartig
Czechoslovakia, Hochgesenke, Gr. Kessel
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