Petrak, Fl. Bohem. Morav. Exs. PilzeF. Petrak [1-2575]
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USDA United States National Fungus Collections
Catalog #: BPI 990879
s.n.
Helvella atra Oeder
Czech Republic
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University of Wisconsin-Madison Herbarium
Catalog #: WIS-F-0071001
J. Hruby #s.n. 00 October 1931
Helvella atra J. König
Czech Republic, Brünn in Mähren
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