Grand River, Long Creek and the Little Rivers yielded almost no water mollusks. Four examples of Unio schoolcraftii Lea, one U. loevissimus Lea, and one Helix clausa Say. Of the Ferns the following were observed: Osmunda claytoniana, Botrychium virginicum, Adiantum pedatum, Cystopteris fragilis, Asplenium felix-foemina and Onoclea sensibilis.
Proceedings of the Iowa Academy of Sciences
©1887 Iowa Academy of Science, Inc.
Witter, F. M.
"Notes on Some Shells, Ferns, Etc. - Collected in Deacatur County, Iowa and Lyon County, Kansas, in the Summer of 1886,"
Proceedings of the Iowa Academy of Science, 1(Pt. 1), 17-18.
Available at: https://scholarworks.uni.edu/pias/vol1/iss1/15