1012 



COMPOSITAE 



Lactuca 



o 5o 



Map 2223 



Lactuca canadensis var obovata Wieg 



50 



Map 2224 



Lactuca villosa Jacq 



22: 10. 1920.) My only specimen was found along a trail in Clifty Falls 

 State Park. 



Mass., Conn, to Del., N. Y., and 111. 



4d. Lactuca canadensis var. obovata Wieg. (Rhodora 22: 10. 1920.) 

 (Lactuca integrifolia of Gray, Man., ed. 7, not Bigel.) Map 2223. Infre- 

 quent in open woodland and along roadsides in the southern part of the 

 state. Wiegand also describes f. stenopoda of this species with the leaves 

 not sagittate. I have not found this form in Indiana. 



Maine to Ind. and Nebr., southw. to N. J. and Okla. 



5. Lactuca villosa Jacq. Map 2224. This species is infrequent to fre- 

 quent in the southern part of the state, becoming infrequent, local, or 

 absent in the northern counties. 



N. Y. to Nebr., southw. to Fla. and La. 



6. Lactuca floridana (L.) Gaertn. Map 2225. I have what I believe to 

 be this species from the greater part of the state. It is frequent at least 

 in the southern part and is usually found in woodland. It prefers shady 

 woods along streams. Our manuals describe it as having the achene with 

 a short, narrow beak. All of my specimens are beakless, at least none 

 with a beak longer than 0.3 mm. 



N. Y. to Minn., southw. to Fla. and Tex. 



7. Lactuca spicata (Lam.) Hitchc. Map 2226. This is our largest 

 species and normal size specimens range from 6-10 feet high. It is a wood- 

 land species, preferring rather moist, rich soil. It is rather frequent in 

 the northern part of the state where its flowers are usually cream color. 

 In the southern part of the state it becomes infrequent. Throughout its 

 range it is also found along roadsides. 



Newf. to Man., southw. to N. C., Tenn., Iowa, and Colo. 



7a. Lactuca spicata var. integrifolia (Gray) Britt. Map 2227. The 



variety is much smaller in stature and very local. Its habitat is the same as 

 that of the species. 



