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

USDA United States National Fungus Collections
Catalog #: BPI 409634
s.n.
Oidium leucoconium Desm.
Czechoslovakia, formerly Austria Bohemia, Teplice

University of Illinois Herbarium
Catalog #: ILL00086002
de Thümen s.n.
Oidium leucoconium f. rosae caninae Desm.
Czech Republic, Bohemia, Teplitz; Teplitz

Rutgers University, Chrysler Herbarium - Mycology Collection
Catalog #: CHRB-F-0012647
DeThumen s.n.
Oidium leucoconium Desm.
Czech Republic, Bohemia