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

Rutgers University, Chrysler Herbarium - Mycology Collection
Catalog #: CHRB-F-0001351
. s.n.
Ascotricha chartarum Berk.
Italy, Treviso, Treviso;

University of Illinois Herbarium
Catalog #: ILL00085776
de Thümen s.n.
Ascospora mali Fuckel
Czech Republic, Bohemia, Teplitz; Teplitz

USDA United States National Fungus Collections
Catalog #: BPI 597401
Thuemen s.n.
Laestadia mali (Fuckel) Sacc.
Czechoslovakia, Teplitz