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Cystopteris bulbifera Bernh. Rocky banks and ravine sides 

 near water. Common in the central, rare in the southern part of 

 the State. 



Cystopteris fragilis Bernh. Fragile Bladder fern. On gravel- 

 ly hillsides and moist rocks. Common. Two varieties of this 

 are occasionally met with, viz. dcntata Hook, and magnasora 

 Clute. 



Dicksonia pilosiuscula YVilld. Abundant. Growing in large 

 beds along roadsides and in moist woodlands. 



Nephrodium Boottii Davenp. Frequent in damp woods through- 

 out the State. 



Nephrodium cristatum Michx. Crested fern. Common in 

 swampy grounds. 



Nephrodium cristatum Clintonianum Gilbert. Growing gen- 

 erally with the type. 



Nephrodium fragrans Rich. Fragrant fern. Lake Avalanche 

 and Cascadeville on cliffs. Professor Peck. Rare. 



Nephrodium Goldienum Hook. Occasional in swampy ground 

 throughout the State. 



Nephrodium marginale Michx. Plentiful in rocky woods. 



Nephrodium Noveboracense Desv. New York fern. Common 

 in damp woods and thickets. 



A T ephrodiiim simulation 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. Cats- 

 kifl and Adirondack Mts., Professor Peck; Yates Co., Sartwell. 

 In more elevated situations than the type. 



Nephrodium spinulosum f. intermedium. Davenp. Our com- 

 monest woods fern. 



Nephrodium they pte ris Desv. Marsh fern. Abundant in 

 wet ground, whether shaded or not. 



Onoclea sensibilis L. Sensitive fern. Common in swampy 

 ground. 



Pcllaea atropurpurea Link. On cliffs both in eastern and west- 

 ern New York. Scarce. 

 Pellaea gracilis Hook. Slender Cliff Brake. Not common, 



