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

University of Illinois Herbarium
Catalog #: ILL00086167
de Thümen s.n.
Erysiphe martii f. aparines
Czech Republic, Bohemia, Aussig; Aussig

USDA United States National Fungus Collections
Catalog #: BPI 560422
Thuemen s.n.
Erysiphe cichoracearum DC.
Czechoslovakia, Bohemia, near Aussig