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

University of Illinois Herbarium
Catalog #: ILL00085397
s.n.
Cryptosporium perularum Thüm.

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00040341
ThÙmen #s.n. 00 April 1879
Cryptosporium perularum ThÙm.
Slovenia, Krain, bei Louisianaibach