HOFFMANN: FLORA OF BERKSHIRE COUNTY. 225 



local. New Ashford; Lee; West Stockbridge; New Marlboro; 

 Egremont; Sheffield. Not noted in Stockbridge. 



C. echinata Murr. — (C sfelhilaUi Man. ed. 7; vid. Rhodora, 19: 

 154, 1917. C. Leersii 111. Fl. ed. 2.) 



Borders of ponds and bogs; occasional, chiefly at high altitudes. 

 Ice Pond, summit of Greylock; Florida; South Pond, Savoy (alti- 

 tude 2000 feet); Cheshire (Cushman); Berry Pond, Hancock (alti- 

 tude 2000 feet) ; Washington. 



var. angustata Carey. — Wet meadows and marshes; common. 



var. excelsior (Bailey) Fernald. — Marshes; frequent, especially 

 at high altitudes. 



var. ormantha Fernald. — Wet bank, Florida; springy meadow, 

 Savoy; bog, Hancock (altitude 2000 feet). 



C. festucacea Schkuhr, var. brevior (Dewey) Fernald. — Open 

 sterile soil; common in the southern part of the valley, on hills of 

 glacial drift. Also in Washington at the edge of the plateau. 



C. filiformis L.— (C. lasiocarpa 111. Fl. ed. 2.) 



Open marshes; common. 



C. flava L. — Wet meadows and ditches; common. 



var. elatior Schlecht. — (C. lepidocarpa 111. Fl. ed. 2 in part.) 



Low ground; occasional. Williamstown; Becket; Sandisfield; 

 Monterey; Sheffield. 



var. rectirostra Gaudin. — (C lepidocarpa 111. Fl. ed. 2 in part.) 



Borders of ponds and marshes, on shores formed by receding water; 

 common. Occasional on wet gravelly slopes. 



C. foenea Willd. — Open rocky woodland; common except on the 

 plateau. 



var. perplexa Bailey. — Thickets; occasional. Florida; Great 

 Barrington; New Marlboro. 



C. folliculata L. — Marshes and shaded swamps; frequent. 



C. formosa Dewey. — The type station is Stockbridge. The spe- 

 cies is now extremely local there, occurring in moist thickets at two 

 stations al)out two miles apart. It has been collected at Egremont 

 (Walters). 



C. gracillima Schwein. — Thickets and clearings; common in the 

 valhy, occasional on the plateau (Florida, Savoy). On Greylock to 

 the suinmit. 



C. granularia Mulil. — Wet meadows and roadside ditches; com- 

 mon. 



