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

University of Illinois Herbarium
Catalog #: ILL00085186
s.n.
Urocystis occulta

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00084252
Dr. Schroter s.n.
Urocystis occulta
Germany