Botrychium tenebrosum A. A. Eaton. Baldwinsville, L. M. Underwood; Deerfield and Cedar Lake. J. V. Haberer. Probably not rare, but escapes notice because of its minute size.
Botrychium Virginianum Sw. Rattlesnake fern. In rich woods. Common.
Ophioglossum vulgatum L. Frequent in damp ground throughout the State.
Osmundaceae.
Osmunda cinnamomea L. Cinnamon fern. Swamps. Common.
Osmunda Claytoniana L. Interrupted fern. Along roadsides and in thickets.
Osmunda regalis L. Royal fern. Widely spread, but not so abundant as O. Cinnamomea.
Schizaeaceae.
Lygodium palmatum Swz. Climbing fern. Hunter, Green Co. and McDonough, Chenango Co., Professor Peck. The only localities known in the State.