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

University of Illinois Herbarium
Catalog #: ILL00085420
s.n.
Podosphaera kunzei Lév.

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00065693
Thumen s.n. 00 September 1874
Podosphaera kunzei Lév.
Germany, Bayern: bei Bayreuth