CICHORIACEAE 645 



A very rare species, confined so far as present records show, to the 

 salt marshes of Westchester Co., N. Y. on L. I. Sound. 



5. L. sagittifolia Ell. In dry open soil: N. B. and Ont. to Idaho, 



Ga. and Kan. 

 Throughout the area except in the pine-barrens. 



6. L. villosa Jacq. In thickets: N. J. to 111., south to Fla., Ga. 



and Ky. 



N. J. Very rare in Burlington Co., northwest of the pine-barrens, 



thence unknown to Hunterdon, Somerset, Bergen and Hudson 



counties; nowhere common. 

 Pa. Northampton Co. southward. 



A rare and local species with a very scattered distribution. 



7. L. floridana (L.) Gaertn. In moist open places: southern 



N. Y. and Pa. to 111., Neb., Fla., La. and Kan. 



N. J. Bergen Co., and in the drainage of the Delaware from 



Sussex to Burlington counties. 

 Pa. Northampton Co. southward. 



8. L. spicata (Lam.) Hitchc. In moist soil: Newf. to Man., south 



to N. Car., Tenn., Iowa and S. Dak. 



Throughout the range, except the pine-barrens, there wanting; 

 more common northward than elsewhere. 

 The Lettuce. L. sativa L., sometimes escapes from gardens. 



12. Crepis L. 



Stem leaves narrow, revolute-margined, sessile. 1. C. tectorum. 

 Stem leaves lanceolate, clasping, not revolute-margined. 



Involucre 6-8 mm. high: achenes 10 striate. 2. C. capillaris. 



Involucre 8-12 mm. high, achenes 13 striate. 3. C. biennis. 



1. C. tectorum L. In waste places and on ballast: Ont., Mich. 



and Neb. to Conn., N. J. and Pa. Native of Europe. 

 Rare as a weed over most of the area. 



2. C. capillaris (L.) Walby (C. virens L.). In fields and waste 



places: Conn., N. J., N. Y. and Pa. Adventive from 

 Europe. 



Not uncommon as a weed, often wanting. 



3. C. biennis L. In waste places: Vt. to Pa. and in ballast about 



the seaports. Native of Europe. 



