SOLANACEAE 547 



4. S. Dulcamara L. In waste places or in thickets: N. B. to 



Minn., N. J., Pa. and Kan. Naturalized from Europe. 



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



The potato, Solatium tuberosum L. is an occasional waif in the area, and 5. sisymbrii- 

 folium Lam. has been collected in New York City. 



4. Lycopersicon Mill. 

 1. L. Lycopersicon (L.) Karst. Escaped from cultivation: N. Y. 

 and Pa., southward. Native of South America. 



Not infrequently found as a scarcely persistent escape from cul- 

 tivation. 



5. Lycium L. 



1. L. halimifolium Mill (L. vidgare (Ait.) Dunal). In thickets 

 and waste places, escaped from gardens: Ont. to Conn., Va.„ 

 Minn, and Kan. Introduced from Europe. 



Occasional in most parts of our range as an escape from culti- 

 vation. 



6. Hyoscyamus [Tourn.] L. 



1. H. niger L. In waste places: N. S. to Ont., N. Y. and Mich. 



Naturalized from Europe. 



Rare in our area as an occasional waif. 

 H. albus L. has been recorded as a waif near New York; scarcely persistent. 



7. Datura L. 



Glabrous or very sparingly pubescent; leaves lobed, calyx prismatic. 1. D. Stramonium. 

 Finely glandular-pubescent; leaves entire; calyx tubular. 2. D. Metel. 



i. D. Stramonium L. In fields and waste places: N. S. to Fla., 

 Minn., and Tex. Naturalized from Asia. 



Common throughout 'our range in waste places in some of its 

 forms. The purple-flowered D. Tatula L. is not here considered as 

 of specific rank. 



2. D. Metel L. In waste places: R.I. to Fla. Native of Trop. Am. 



Very rare as an occasional adventive. 

 Datura meteloides DC. has been collected as a waif in Conn., hardly persistent. 



8. Nicotiana L. 



1. N. rustica L. In fields and waste places: Ont. to Minn., 



N. Y. and Fla. 



Rare as an adventive weed; cultivated and sometimes escaping. 



Nicotiana longiflora Cav. has been collected in Northampton Co., Pa. and N. Tabacum 

 L. has been collected in Conn, as an escape. 



