Nephrodium marginale Michx. Plentiful in rocky woods.

Nephrodium Noveboracense Desv. New York fern. Common in damp woods and thickets.

Nephrodium simulatum Davenp. Middle Village, L. I., Rev. G. D. Hulst; Babylon and Bellville, L. I., W. N. Clute; Oneida Lake, H. D. House. Rare.

Nephrodium spinulosum Desv. Probably rather common, but not recognized. Grows in damp woods throughout the State.

Nephrodium spinulosum dilatatum Baker. Infrequent. Catskill and Adirondack Mts., Professor Peck; Yates Co., Sartwell. In more elevated situations than the type.

Nephrodium spinulosum f. intermedium. Davenp. Our commonest woods fern.

Nephrodium theypteris Desv. Marsh fern. Abundant in wet ground, whether shaded or not.

Onoclea sensibilis L. Sensitive fern. Common in swampy ground.

Pellaea atropurpurea Link. On cliffs both in eastern and western New York. Scarce.

Pellaea gracilis Hook. Slender Cliff Brake. Not common, but occurring in many localities through the State. Always on rocks or cliffs.