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

University of Illinois Herbarium
Catalog #: ILL00085648
de Thümen s.n.
Peronospora affinis Rossm.
Czech Republic, Bohemia, Turmitz

Rutgers University, Chrysler Herbarium - Mycology Collection
Catalog #: CHRB-F-0013084
De Thumen s.n.
Peronospora affinis Rossmann