Thümen, Fungi Austr. Exs.
F.K.A.E.J. de Thümen [1-1200]

University of Illinois Herbarium
Catalog #: ILL00085612
de Thümen s.n.
Polyporus igniarius (L.) Fr.
Czech Republic, Bohemia, Ústí nad Labem

USDA United States National Fungus Collections
Catalog #: BPI 230728
Thuemen s.n.
Fomes igniarius (L.) Fr.
Czechoslovakia, Bohemia, Usti (Aussig) on the Elbe