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

USDA United States National Fungus Collections
Catalog #: BPI 1033722
s.n.
Peronospora gangliformis (Berkeley) de Bary

USDA United States National Fungus Collections
Catalog #: BPI 786018
de Thumen s.n.
Bremia lactucae Regel
Czechoslovakia, Bohemia, Teischen

University of Illinois Herbarium
Catalog #: ILL00086150
de Thümen s.n.
Peronospora gangliformis f. lactucae
Czech Republic, Bohemia, Tetschen; Tetschen