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

University of Illinois Herbarium
Catalog #: ILL00085954
de Thümen s.n.
Erysiphe laprocarpa f. lactucae muralis Lev.
Czech Republic, Bohemia, Teplitz; Teplitz

USDA United States National Fungus Collections
Catalog #: BPI 560989
Thuemen s.n.
Erysiphe cichoracearum DC.
Czechoslovakia, Bohemia, Teplitz