LIST OF HIGHER SEED-PRODUCING PLANTS. 561 



Ont. to Brit. Col. and coast region; S. to Oregon and N. Calif.; 

 E. to Minn., N. J., Iowa, Tenn. and N. Car. 



Minn, valley: Forest district and W. to Cottonwood 

 valley; low grounds near thickets or along streams. 



Herb,: Ballard 64.0, Chas^Sk; Sheldon 1184, l^ewUlm.; 

 Sheldon 894, Sleepy Eye; Bailey 4o7, Mud lake; Roberts 71, 

 Stewart river; Sandberg S60, Red Wing; Oestlund 105, Minne- 

 apolis. 



Lactuca floridana (Linn.) Gaertn. Fruct. II, 262 (1791). 



Sonchus Jloridanus Linn. Spec. II, 795 (1753). 

 Mulgedium lyratum Cass. Diet. XXXIII, 297 (1826). 

 Mulgedium Jloridanum DC. Prodr. VII, 249(1839). 

 Galathennim Jloridanum Nutt. Trans. Am. Phil. Soc. VII, 441 

 (1841). 



Wats, and Coult., Gray's Man. 6 ed. 304; Britt., Fl. N. J. 154; Webb., 

 Fl. Neb. 143; Mac, Fl. Can. 1,281; Upham, Fl. Minn. 91; Chap., Fl. S. St. 

 .253; Gov., Fl. Ark. 199; Gray, Syn. Fl. I, 2, 443; Coult., Fl. Tex. 249. 



North America: Detroit river and Minn, to N. J., 

 Penn. , Carolinas and Fla. ; W. to Ills. , Neb. and Ark. 



Minn, valley: Reported from N. E. and E. edges; 

 local or doubtful; borders of woods or thickets. 



Lactuca pulchella (Pursh) DC. Prodr. VII, 134 (1838). 



Sondms pulchellus PuRSH, Fl. Am. 502 (1814). 

 Lactuca integrifolia Nutt. Gen. II, (1818). 

 Sonchus sibiricus KiCH. Hook. Fl. Bor.-Am. I, 293 (1833). 

 Mulgedium pulchelluni T. and G. Fl. II, 497 (1841). 

 M. heterophyllum Nutt. Trans. Am. Phil. Soc. VII, 441 (1841). 

 Wats, and Coult., Gray's Man.6 ed. 304; Webb., Fl. Neb. 143; Upham, 

 Fl. Minn. 91; Brew, and Wats., Fl. Calif. I, 442; Coult., Fl. Colo. 223; 

 Roth., Wheel. Exp. 182; Wats., King Exp. 208, 422; Gray, Syn. Fl. I, 2, 443. 

 North America: L. Huron throughout C. Can. to 66° 

 N. lat., Mackenzie river reg. and Alaska; S. to N. Mex. and 

 Calif.; E. to Neb., Minn, and Mich. 



Minn, valley: Throughout; local or infrequent; prai- 

 ries and edges of woods. 



Herb.: Sheldon 491, Madison Lake; Ballard 682, Wa- 

 conia; Taylor 41-5, Janesville; Taylor IO40, Glenwood; Taylor 

 883, Glenwood; Sheldon l"'i74. Lake Benton; Juni 9, Lake Car- 

 los; Bailey 4, Vermilion lake. 



Lactuca liidoviciana (Nutt.) DC. Prodr. VII, 141 (1838). 

 Sonchus ludovicianus Nutt. Gen. II, 125(1818). 

 Galathenium ludovicianum Nutt. Trans. Am. Phil. Soc. VII, 433 

 (1841). 



Wats, and Coult., Gray's Man. 6 ed. 304; Gray, Syn. Fl. I, 2, 443; 

 Coult., Fl. Colo. 223; Webb., Fl. Neb. 143; Upham, Minn. Suppl. 86; 

 Coult., Fl. Tex. 249. 

 -36 



