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OPHIOGLOSSACE^E. 



Botrychium lanceolatum Angstroem. Most ' hollows 

 in cool, open woods. Very rare in the lowlands of south- 

 ern and western Vermont. 



Botrxchium matricarice folium A. Br. Rich, moist 

 woods ; occasional. 



Botrychium Lunaria Sw. One specimen at Wil- 

 loughby, G. H. Tilton. The only Xew England station, 

 and probably the only known station south of the Bay of 

 Chaleur, Xew Brunswick. 



Botrychium simplex Hitchcock. Hilly pastures and 

 open woods ; occasional. 



Botrychium tcucbrosum A. A. Eaton. Charlotte, New- 

 fane. Probably as common as simplex, but not well 

 known. 



Botrychium obliquum Muhl. Moist, gravelly slopes 

 along the base of the hills and mountains ; frequent. 



Botrychium obliquum diss ec turn Clute. Cool, loamy 

 soil of fields ; occasional. 



Botrxchium obliquum intermedium Underw. Old pas- 

 tures and copses ; occasional. 



Botrxchium matricarice Spring. Old fields; rare. 



Botrxchium Virginianum Swartz. Rich woods; com- 

 mon. 



Ophioglossum vulgatum L. Muck; occasional. 



OSMUXDACEiE. 



Osmiuida cinnamomca L. Wet woods and pastures; 

 common. 



Osmunda Claytoniana L. Wet woods and pastures; 

 common. 



Osmunda rcgalis L. Wet woods and swamps; com- 

 mon. 



POLYPODIACE/E. 



Adiantum pe datum L. Rich moist woods; common. 

 Polystichum acrostichoides Schott. Rocky woods; 

 common and variable. 



