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

Rutgers University, Chrysler Herbarium - Mycology Collection
Catalog #: CHRB-F-0003176
de Thüemen s.n.
Cladosporium fumago Mont.
Czech Rupublic, Bohemia

University of Illinois Herbarium
Catalog #: ILL00086090
de Thümen s.n.
Cladesporium fumago var. betulae Lk.
Czech Republic, Bohemia, Tetschen; Tetschen

USDA United States National Fungus Collections
Catalog #: BPI 447106
Thuemen s.n.
Fumago vagans var. betulae
Czechoslovakia, formerly Austria Bohemia, Decin (Tetschen)