F.K.A.E.J. de Thümen [1-750, plus extras]

University of Illinois Herbarium
Catalog #: ILL00085036
s.n.
Peronospora Corda

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00062192
von Thumen s.n. 00 August 1875
Peronospora nivea de Bary
Germany