628 COMPOSITAE 



1. B. laevis (L.) B. S. P. In swamps and wet meadows: Mass. to 



N. Car. and western N. Y. 



Throughout most of the range, except in the pine-barrens, there 

 not recorded. Most abundant along the coast. 



2. B. cernua L. In wet soil: N. S. to Hudson Bay and B. Col., 



south to N. Car., Mo. and Cal. Also in Europe and Asia. 



Throughout the range except in the pine-barrens and east and 

 south of them, there unknown, always increasing northward. 



3. B. connata Muhl. In swamps or moist soil : N. S. to the N. \Y. 



Terr., south to Del., Ga., Ky. and Mo. 



Throughout the range, but rare and probably only intrusive in 

 the pine-barrens. 



4. B. comosa (A. Gray) Wiegand. In wet soil: Mass. and 111. 



to Pa. 



Rare or occasional in most parts of our area, except the coastal 

 plain of N. J., there unknown. 



5. B. bidentoides (Nutt.) Britton. On muddy shores: N. J. and 



Pa. to Md. and Del. 



The lower Delaware Valley in Mercer, Burlington, Camden, 

 Salem and Cape May counties in N. J. and Bucks, Philadelphia 

 and Delaware counties, Pa. 



6. B. discoidea (T. & G.) Britton. In swamps and wet places: 



Mass. to Va., Ohio, Mich., La. and Tex. 



Conn. Along the coast and up the Connecticut River Valley, rare 

 or wanting elsewhere. 



N. Y. L. I., S. I. and the Bronx, not certainly reported else- 

 where. 



N. J. Sussex, Morris, Middlesex, Camden, Salem, Gloucester 

 and Cape May counties. 



Pa. Northampton and Luzerne counties. 

 A rare and scattered species. 



7. B. frondosa L. In moist soil, often a weed in fields: N. B. to 



Fla., Neb. and Tex. 



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

 unknown. 



8. B. vulgata Greene. In moist soil: Ont. to N. Car., B. Col., 



Mo. and Cal. 



