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

University of Illinois Herbarium
Catalog #: ILL00085139
s.n.
Caeoma poterii Schltdl.

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00084017
Thumen s.n. 00 April 1876
Uredo poterii Rabenh.
Germany