CRUCIFERAE 343 



i. C. pratensis L. In wet meadows and in swamps: Lab. to 



N. J., B. Col. and Minn. Also in Europe and Northern Asia. 



Conn. Rare and local in northern Hartford and Litchfield coun- 

 ties, otherwise unknown. 



N. Y. Pine Plains, Dutchess Co.; also on lawns at Riverdale 

 and at Garden City. 



N. J. Collected years ago in a swamp in Bergen Co., and 

 Succasunna, Morris Co. 



A rare and local plant in our area, becoming frequent in the far 

 north. 



2. C. hirsuta L. In moist places and waste ground : Mass. to 



Pa. and Mich. Neb. and N. Dak. 

 Occasional on lawns. 



3. C. pennsylvanica Muhl. (C. flexubsa Auct. not With.). In 



swamps and wet places: Newf. to Minn., Mont., Fla., Tenn. 

 and Kan. 



Common throughout the area, except in the pine-barrens, there 

 rare or wanting. 



4. C. arenicola Britton. In sandy soil: Conn, to Fla., Ky. and 



Tenn. 



Conn. Middletown. 



N. Y. Occasional on the coastal plain of L. I.; Westchester Co. 



N. J. Coastal plain from Ocean Co. southward. 



Perhaps not specifically distinct from C. parvi flora. 



5. C. parviflora L. On rocks: Que. to W. Ont., Ore., south to 



Mass. and Ga. Also in northern Europe and Asia. 



Conn. Throughout the state, nowhere common. 



N. Y. Occasional in the Bronx and Westchester Co., thence 



increasing northward; Roslyn, L. I. 

 N. J. Rare and local in Bergen Co., thence increasing westward. 

 Pa. Monroe, Northampton, Luzerne, Philadelphia and Bucks 



counties. 



Tertiary, 0: Cretaceous, o: Older Formations increasing north- 

 ward. Predominating north of the moraine. 123-179 days. Sea 

 level-2,100 ft. 



6. C. purpurea (Torr.) Britton. In cold springy places: Que. 



and Arctic Am. to the Canadian Rockies, Md. and Wise. 

 Conn. Rare and local in Litchfield and Fairfield counties. 



