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

University of Illinois Herbarium
Catalog #: ILL00085194
s.n.
Gymnosporangium R. Hedw. ex DC.

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00054457
Thumen s.n. 00 April 1877
Gymnosporangium clavariaeforme (Wulfen) DC.
Germany, Nieder-Oesterreich: bei Klosterneuburg