The ferns and fern allies of the upper Susquehanna valley Clute, Willard Nelson, 1869-1950 creator text book Binghamtom, N.Y W.N. Clute & Co 1898 1898
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ENG Cover title: Ferns of the upper Susquehanna. "Reprinted, with notes, from 'The flora of the upper Susquehanna.'" Filices New York (State) Pteridophyta Susquehanna River Valley QK525.5.N7 C56 1898 Ferns of the upper Susquehanna https://www.biodiversitylibrary.org/bibliography/59577 13074477 10.5962/bhl.title.59577 VXG