224 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
C. communis IJailcy. — Ojx'ii woods; common. 
C. comosa Boott. — Borders of ponds and marshes; frequent in the 
valley. 
C. conoidea Schkuhr.^ Meadows and damp pastures; common. 
C. Crawfordii Fcrnald. — 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, P^lorida; 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. gyncmdra 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. crisiatclla 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; 
