6l6 COMPOSITAE 



4. E. ramosus (Walt.) B. S. P. In fields: N. S. to N. W. Terr., 

 south to Fla., La. and Tex. 



Common throughout the area, except the pine-barrens, as a 

 locally abundant weed. 



E. acris L. has been recorded as a waif. 



17. Leptilon Raf. 



Pubescent; bracts of the involucre green. 1. L. canadense. 



Glabrous or nearly so; bracts purple-tipped. 2. L. pusillum. 



1. L. canadense (L.) Britton. In fields and waste places: 



Throughout N. Am. except the southeastern states. Natur- 

 alized in the Old World. 



Throughout the range, usually as a weed. 



2. L. pusillum (Nutt.) Britton. Sandy soil, Mass. to Fla., Ky., 



Tex. and tropical America. 



Known in our area only from Monmouth and Burlington 

 counties southward in N. J., and from Long Beach and Bayshore, 

 L. I., N. Y. 



L. divaricatum (Michx.) Britton and L. linifolium (Willd.) Small, have been re- 

 corded as waifs. 



18. Doellingeria Nees. 



Lewes lanceolate to ovate; heads mostly numerous. 



Leaves lanceolate to oblong-lanceolate, acuminate. I. D. umbellata. 



Leaves ovate to ovate-lanceolate, acute. 2. D. humilis. 



Leaves, at least the lower, obovate; heads commonly few. 3. D. infirma. 



1. D. umbellata (Mill.) Nees. In moist soil: Newf. to Ga., west 



to the N. W. Terr., Mich, and Ark. 

 Throughout the range, except the pine-barrens, there unknown. 



2. D. humilis (Willd.) Britton. In moist soil: E. Mass. to N. J. 



and Pa. south to Fla. and Tex. 



N. J. Rare in the pine-barrens of Ocean, Monmouth, Atlantic and 



Cape May counties, and near High Point, Sussex Co. 

 Pa. Delaware Co. 



3. D. infirma (Michx.) Greene. In dry, usually rocky soil: 



Mass. to N. Y., Pa. and Tenn. 

 Conn. Scattered, and rare, over most of the state. 

 N. Y. Rare on L. I. and in the Bronx; unknown on S. I., thence 

 increasing but not common northward. 



