HOFFMANN: FLORA OF BERKSmRE COUNTY. 223 



C. albicans Willd. — Rich woods, Hinsdale. The only known 

 station in Massachusetts. 



C. albolutescens Schwein., var. cumulata Bailey. — {C. alho- 

 hdescens Man. ed. 7 in part.) 



Exposed ledges at Bash Bish Falls, Mt. Washington, rocky shores 

 of Guilder Pond, Mt. Washington, and the upper slopes of The Dome. 

 Altitude 2100 feet. 



C. alopecoidea Tuckerm. — Swale, Williamstown; meadows and 

 swales near the river. North Adams (Fernald and Long). 



0. annectens Bicknell. — {C. setacea Dewey, var. ambigua Man. 

 ed. 7; vid. Bull. Torr. Bot. Club, 36: 492, 1908.) 



Dry fields and roadsides; frequent. Often occurring as if intro- 

 duced with grass seed. 



C. aquatilis Wahlenb. — Marshes in the valley; rare. Lake Buel, 

 Monterey (Walters); Joyner's marsh, Egremont. 



var. cuspidata Laestad. — With the type. Lake Buel, Monterey. 



var. virescens Anders. — With the type at Monterey and Egremont. 



C. arctata Boott. — Woods and clearings; frequent in the valley, 

 common on the plateau. 



C. atlantica Bailey. — (C. sterilis Man. ed. 7.) 



Ice Pond, Mt. Greylock (Burnham), specimen not seen by the 

 writer; borders of peat bogs. Lost and Ward Ponds, Becket. 



C. aurea Nutt. — Low ground, wet meadows, roadside ditches; 

 common in calcareous soil. 



C. Bebbii Olney. — Low ground; common. 



C. bromoides Schkuhr. — Wet woods and swamps; common. 



C. brunnescens Poir. — Rocky woods, dry clearings and moist 

 thickets; common on the plateau, occasional in the valley (Cheshire, 

 Winslow). Common on the upper portion of Greylock. 



C. canescens L. — Low ground, Florida; swampy woods, Shefiield 

 (Fernald). 



var. disjuncta Fernald. — Swamps and bogs; common. 



var. subloliacea Laestad. — Borders of pools in marshes, boggy 

 shores of ponds; common. 



C. cephaloidea Dewey. — Rich woods; occasional. Williamstown; 

 North Adams; Becket; Stockbridge; West Stockbridge; New Marl- 

 boro; Sheffield; Egremont. 



C. cephalophora Muhl. — Dry open woodland; frequent in the 

 valley, occasional on the plateau (Sandisfield). 



