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

University of Illinois Herbarium
Catalog #: ILL00085511
de Thümen s.n.
Radulum laetum Fr.
Czech Republic, Bohemia, Teplitz

Miami University, Willard Sherman Turrell Herbarium
Catalog #: 000214800
de Thumen #618
Radulum laetum Fr.
Czech Republic, Bohemia, Teplice

USDA United States National Fungus Collections
Catalog #: BPI 263328
Thuemen s.n.
Radulum laetum Fr.
Czechoslovakia, Bohemia Northern, near Teplice