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Polystichum Braunii Fee. Smuggler's Notch, Pursh, 

 1807, is the type station. Moist woods above 2000 feet 

 altitude : occasionally in " gulfs " at lower altitudes. 



Nephr odium Boottii Davenp. Wet thickets and about 

 ponds ; occasional. 



Nephr odium crista turn Michx. Moist thickets and 

 swamps : frequent. 



Nephrodium cristatum Clintonianum Gilbert. Swampy 

 woods ; frequent. 



Nephrodium fragrans Rich. Dry shelves, subalpine 

 cliffs, Mt. Mansfield, Camel's Hump, and Bolton Notch 

 (altitude 300 feet), Mt. Zion (Hubbardton), Taconic 

 Mountains. 



Nephrodium Goldicanum Hook. Rich, moist woods; 

 occasional. 



XcpJirodium marginaJc Michx. Rocky woods; com- 

 mon. 



Nephrodium Noveboracense Desv. Damp woods and 

 swamps ; common. 



XcpJirodium spinulosum Desv. Moist woods; occa- 

 sional. 



XcpJirodium spinulosum diJatatum Baker. Mountain 

 woods ; common above 2500 feet altitude. 



Nephrodium spinuJosum f. intermedium Davenp. 

 Woodlands ; common. 



XcpJirodium simuJatum Dav. Brattleboro, Mrs. F. B. 

 Horton. 



XcpJirodium TJiclyptcris Desv. Swamps and wet 

 places : common. 



XcpJirodium Pittsfordcnsc Slosson. Cold bogs: Pitts- 

 ford. Shrewsbury, Dorset, St. Johnsbury. 



AspJcnium angustifoJium Michx. Rich, moist woods; 

 occasional. 



AspJcnium ebencum Ait. Rocky woods; frequent. 



AspJcnium ebenoides R. R. Scott. Limestone; Rut- 

 land, G. H. Ross; Proctor, G. A. WooJson. 



AspJcnium Ruta-muraria L. Limestone cliffs of west- 

 ern Vermont ; occasional. Willoughby Mt., E. Faxon, F. 

 A. Winslow. 



