338 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



var. ianthinus (Burgess) Fernald.- — {A. ianthinus 111. Fl. ed. 2.) 



Open woods; occasional. Florida; Stockbridge; West Stock- 

 bridge; New Mariboro; Alford; Mt. Washington. 



A. multiflorus Ait. — Dry soil; occasional. Williamstown; 

 Lanesboro (Walters); New Mariboro (Walters); Egremont; 

 Sheffield. 



var. exiguus Fernald. — Dry hillside, West Stockbridge. 



A. novae-angliae L. New England Astee. — Thickets in low 

 ground and ill-drained hillsides; common in the valley, rare on the 

 plateau. October Mt., Washington (altitude 1850 feet). 



forma roseus (Desf.), comb. nov. — With the type; occasional. 

 Stockbridge; West Stockbridge. 



A. novi-belgii L. — Common along the flood-plain of the Deerfield 

 River, Florida. 



A. paniculatus Lam. — Roadside thickets in low ground and wet 

 meadows ; common in the valley, infrequent on the plateau (Washing- 

 ton, altitude 1850 feet). 



var. acutidens Burgess. — Low ground; occasional. Lenox; 

 Stockbridge; Alford. 



var. bellidiflorus (Willd.) Burgess. — With the type; frequent. 



var. simplex (Willd.) Burgess. — With the type; frequent. 



var. cinerascens Fernald. — Open woods. New Marlboro (Walters) . 

 Specimen in F. Walters' herbarium. 



A. polyphyllus Willd.— (A. Faxoni 111. Fl. ed. 2.) 



Dry banks and low meadows in calcareous soil; occasional. Stock- 

 bridge; West Stockbridge. 



A. prenanthoides Muhl. — Banks of streams and low ground; 

 locally common along the Green River, Williamstown, the Green 

 River, Egremont, and in wet fields in the' northern part of Lenox. 

 Frequent elsewhere in the valley. 



A. puniceus L. — Swamps, wet meadows, borders of marshes and 

 roadside ditches; common. Summit of Greylock, 3400 feet. 



var. compactus Fernald. — A form closely approaching this variety 

 but not the typical eastern Massachusetts form is occasional in the 

 valley. Pittsfield; Stockbridge; West Stockbridge; Sheffield. 



var. demissus Lindl. — Low ground; frequent in the valley. Alti- 

 tude 1450 feet, Washington. 



var. firmus (Nees) T. & G. — Low ground; frequent. 



var. lucidulus Gray. — Wet meadows; frequent in the valley. 



