Baker, Pl. S. Colorad.
C.F. Baker, F.S. Earle, S.M. Tracy

Field Museum of Natural History Pteridophyte Collection
Catalog #: C0609694F
ecfb2ae6-d97d-4512-9f4b-afd329acc33f
C. F. Baker #s.n. 13 July 1898
Cystopteris fragilis (L.) Bernh.
U.S.A., Colorado, La Plata, Upper La Plata River