IOO — 



dant in the southern section, not reported from the 

 northern. 



Cystopteris bulbifera Bernh. Rather common in the 

 northern parts of the State, less so in the western and 

 central. 



Cystopteris fragilis Bernh. Common Bladder Fern. 

 Generally distributed in the State but nowhere abundant. 



Cystopteris fragilis Bernh. var. dentata Davenp. 

 Wells (Kate Furbish). 



Polystichum achrostichoides Schott. Christmas Fern. 

 Very common throughout the southern section, but not 

 known north of forty-seven degrees. 



Polystichum achrostichoides f. incisum Gray. Fre- 

 quent with the species. 



Polystichum Braunii Lawson. Rather common in the 

 northern part of the State. Found also at high eleva- 

 tions in the western portion. 



Nephrodium N oveboracense Desv. New York Fern. 

 Found in all parts of the State and common in most. 



Nephrodium Thelypteris Desv. Marsh Fern. In all 

 portions of the State and quite common. 



Nephrodium simulatum Davenp. Not common as far* 

 as known. Georgetown (G. E. Davenport), Southport 

 (M. L. Fernald). 



Nephrodium fragrans Richards. Fragrant Fern. In 

 the extreme northern part of the State (M. L. Fernald), 

 Mt. Kineo (C. E. Smith), Winthrop (H. Metcalf), An- 

 dover (J. A. Allen). 



Nephrodium cristatum Michx. Crested Fern. Com- 

 mon in swamps throughout. 



Nephrodium cristatum Clintonianum D. C. Eaton. 

 Apparently rare. Farmington (H. W. Jewell), South 

 Portland. 



Nephrodium Goldieanum Hook. Goldie's Fern. Not 

 rare in the western and central parts of the State, but 

 not known near the coast nor in the northern section. 



Nephrodium marginale Michx. Marginal Shield 

 Fern. Common on rocky hillsides throughout the State. 



