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. 
HeErRB.: Ballard 645, Chaska; Sheldon 1184, New Ulm; 
Sheldon 894, Sleepy Eye; Bailey 457, Mud lake; Roberts 71, 
Stewart river; Sandberg :60, Red Wing; Oestlund 105, Minne- 
apolis. 
Lactuca floridana (LiInn.) GarRTN. Fruct. II, 262 (1791). 
Sonchus floridanus Linn. Spec. II, 795 (1758). 
Mulgedium lyratum Cass. Dict. XX XIII, 297 (1826). 
Mulgedium floridanum DC. Prodr. VII, 249 (1839). 
(841) Galathenium floridanum Nutr. 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. I, 281; Upham, Fl. Minn. 91; Chap., Fl. 8. St. 
253; Cov.; 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. 
Lactueca pulchella (PursH) DC. Prodr. VII, 134 (1838). 
Sonchus pulchellus Purso, Fl. Am. 502 (1814). 
Lactuca integrifolia Nutr. Gen. II, (1818). 
Sonchus sibiricus Ricu. Hook. Fl. Bor.-Am. I, 293 (1833). 
Mulgedium pulchellum T. and G. Fi. IT, 497 (1841). 
M. heterophyllum Nurt. Trans. Am. Phil. Soc. VII, 441 (1841). 
Wats. and Coult., Gray’s Man. 6 ed. 304; Webb., Fl. Neb. 148; Upham, 
Fl. Minn. 91; Brew. and Wats., Fl. Calif. I, 442; Coult., Fl. Colo. 228; 
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 415, Janesville; Taylor 1040, Glenwood; Taylor 
888, Glenwood; Sheldon 1274, Lake Benton; Juni 9, Lake Car- 
los; Bailey 4, Vermilion lake. 
Lactuca ludoviciana (NuTT.) DC. Prodr. VII, 141 (1888). 
Sonchus ludovicianus Nurr. Gen. II, 125 (1818). 
tage Galathenium ludovicianum Nutr. Trans. Am. Phil. Soc. VII, 433 
). 
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. 
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