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

University of Illinois Herbarium
Catalog #: ILL00085944
de Thümen s.n.
Ustilago violacea f. carthusianorum Tul.
Czech Republic, Bohemia, Teplitz; Teplitz

University of California Berkeley, University Herbarium
Catalog #: UC1270788
de Thümen #s.n.
Microbotryum violaceum (Pers.) G. Deml & Oberw.
Czech Republic, Bohemia, Teplitz

USDA United States National Fungus Collections
Catalog #: BPI 169720
Thuemen s.n.
Ustilago violacea (Pers.) Roussel
Czechoslovakia, Teplice

USDA United States National Fungus Collections
Catalog #: BPI 169743
Thuemen s.n.
Ustilago violacea (Pers.) Roussel
Czechoslovakia, North Bohemia, Teplice