224 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



C. communis Bailey. — Open woods; common. 



C. comosa Boott. — Borders of ponds and marshes; frequent in the 

 valley. 



C. conoidea Sehkuhr. — Meadows and damp pastures; common.- 



C. Crawfordii Fernald. — Sterile fields; common in the northern 

 part of the plateau (Florida, Savoy) ; occasional elsewhere, Ice Pond, 

 summit of Greylock (Burnham); Constitution Hill, Lanesboro. 



var. vigens Fernald. — Pastures, Florida; border of Lake Garfield, 

 Monterey. 



C. crinita Lam. — Low ground, particularly along the Housatonic 

 River; occasional. Florida; Lenox; Pittsfield; Sheffield. 



var. gynandra (Schwein.) Schwein. & Torr. — (C. gynandra 111. 

 Fl. ed. 2.) 



Wet places, particularly in woods; common. 



var. minor Boott. — Ice Pond, Greylock (altitude 3500 feet) ; 

 South Pond, Savoy, altitude 2000 feet. 



C. cristata Schwein. — (C. cristatella 111. Fl. ed. 2.) 



Alluvial soil, chiefly along the Housatonic and Farmington Rivers. 

 Occasionally at higher altitudes, Stockbridge, 1050 feet; Sheffield, 

 along mountain brook, 1600 feet. 



C. Davisii Schwein. & Torr. — Alluvial thickets in the southern 

 part of New Marlboro and Sheffield. 



C. debilis Michx., var. interjecta Bailey. — Occasional; Lanesboro 

 (Churchill); summit of The Dome, Mt. Washington (Cushman). 



var. Rudgei Bailey. — (C. flexuosa 111. Fl. ed. 2.) 



Open woodland, brushy pastures, thickets and roadsides; common. 



C. deflexa Hornem. — Frequent along the Deerfield River, Florida. 

 Collected on Mt. Greylock by Wm. Boott. 



C. Deweyana Schwein. — Dry open or rich rocky woods; com- 

 mon. 



C. diandra Schrank. — Peat bogs; occasional. Williamstown 

 (Dewey); North Adams; Pittsfield; Lee; Monterey; New Marlboro 

 (Walters); Egremont (Churchill). 



var. ramosa (Boott) Fernald. — (C prairea 111. Fl. ed. 2.) 



Borders of peat bogs and marshes; occasional. Williamstown; 

 Clarksburg; Washington (Boott); Stockbridge; West Stockbridge; 

 Monterey; Great Barrington (Walters). 



C. digitalis Willd. — Dry open woods; common. 



C. eburnea Boott. — Limestone hills, either exposed or in shade; 



