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

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00082332
Thumen s.n. 00 May 1875
Taphrina populi
Germany, Bayern: dei Bayreuth

University of Illinois Herbarium
Catalog #: ILL00085274
von Thumen s.n.
Exoascus populi Thüm.