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

University of Illinois Herbarium
Catalog #: ILL00085337
s.n.
Hysterium culmifragum Speg.

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00040726
Thumen #s.n. 00 October 1877
Hysterium culmifragum Spegaz.
Italy, Ober Italien: bei Conegliano auf Roggenstroh