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

USDA United States National Fungus Collections
Catalog #: BPI 788038
de Thumen s.n.
Peronospora effusa (Grev.) Rabenh.
Czechoslovakia, Bohemia, Teplitz

University of Illinois Herbarium
Catalog #: ILL00085740
de Thümen s.n.
Peronospora effusa var. polygoni convolvuli Grev.
Czech Republic, Bohemia, Teplitz; Teplitz