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

University of Illinois Herbarium
Catalog #: ILL00085336
s.n.
Sclerotium clavus DC.

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00078458
von Thumen s.n. 00 July 1878
Sclerotium clavus DC.