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

USDA United States National Fungus Collections
Catalog #: BPI 796367
de Thuman s.n.
Plasmopara densa (Rabenh.) J. Schröt.
Czechoslovakia, Bohemia, Raudnitz

University of Illinois Herbarium
Catalog #: ILL00085539
de Thümen s.n.
Peronospora densa Rabenhorst
Czech Republic, Bohemia, Roudnice nad Labem