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

USDA United States National Fungus Collections
Catalog #: BPI 188216
de Thumen s.n.
Plasmopara nivea (Unger) J. Schröt.
Czechoslovakia, Bohemia, Zinnwald

University of Illinois Herbarium
Catalog #: ILL00085541
de Thümen s.n.
Peronospora nivae
Czech Republic, Bohemia, Zinnwald