LIST OF HIGHER SEED PRODUCING PLANTS. 559 



Fl. Minn. 88: Chap., Fl. S. St. 247; Mac., Fl. Can. I, 270; Gray, Syn. Fl. I, 

 2, 405. 



North America: Newf., Anticosti, N. S., N. Br. to 



Saskatchewan and Minn.; S. to N. Eng., N. J., Va., Fla. and 



La. 



Minn, valley: Forest district; swamps and near lake 

 shores. 



HERB.: Bailey 33, Vermilion lake; Sandberg 350, 



Goodhue Co. ; Taylor 700, Minnesota lake. 



Cnicus discolor MUHL. Willd Spec. Ill, 1670 (1803). 

 Cardans discolor NUTT. Gen. II, 130 (1818). 

 Cirsium discolor SPRENG. Syst. Ill, 373 (1826). 

 Cnicus altissimus var. discolor GRAY, Proc. Am. Acad. XIX, 57 

 (1883). 



Wats, and Coult., Gray's Man. 6 ed. 296; Chap., Fl. S. St. 247; Mac.. 

 Fl. Can. I, 270; Webb., Fl. Neb. 144; Upham, Fl. Minn. 88; Britt., Fl. N. J. 

 151; Cov., Fl. Ark. 198; Gray, Syn. Fl. I, 2, 404. 



North America: N Eng. and Ont. to Minn, and Neb.; 

 S. to N. J., 111., Mo., Ark. and Va. 



Minn, valley: N. districts; meadows, fields, copses 

 and low thickets. 



HERB.: Bollard 761, Waconia; Taylor 741, Glenwood; 

 Herrick 175, Minneapolis; Oestlund 104, Minneapolis; Kassube 

 144, Minneapolis. 



Cnicus altissimus (LINN.) WILLD. Spec. Ill, 1671 (1803). 

 Carduus altissimus LINN. Spec. 824 (1753). 

 Cirsium diversifolium DC. Prodr. VI, 640 (1837). 

 Wats, and Coult., Gray's Man. 6 ed. 296; Britt., Fl. N. J. 151, in var.', 

 Webb., Fl. Neb. 144; Upham, Fl. Minn. 88; Mac., Fl. Can. I, 270 in war.; 

 Coult., Fl. Colo. 214; Chap., Fl. S. St. 247; Cov., Fl. Ark. 198; Gray, Syn. Fl. 

 I, 2, 404; Coult., Fl. Tex. 243. 



North America: Mass, to Minn, and Neb.; S. to Miss., 

 N. Car., Fla., Ark. and Tex. 



Minn, valley: S. central, S. W., W. and N. W. dis- 

 tricts; fields and borders of thickets or streams. 



HERB. : Taylor 1026, Glenwood; Taylor 728, Glenwood; 

 Herb. Wickersheim 85, Ash lake, Lincoln Co. ; Herb. Moyer 154, 

 Chippewa river, near Montevideo. 



Cnicus undulatus (NUTT.).GRAY, Proc. Am. Acad. X, 42 

 (1874). 



Carduus undulatus NUTT. Gen. II, 130 (1818). 

 C. discolor HOOK. Fl. Bor.-Am. I (1833) in part. 

 C. douglasii DC. Prodr. VI, 643 (1837). 

 C. hookerianum HOOK. Lond. Journ. Bot. VI, 253 (1854). 

 Wats, and Coult., Gray's Man. 6 ed. 296; Webb., Fl. Neb. 144; Mac., 

 Fl. Can. I, 269; Upham, Fl. Minn. 88; Coult., Fl. Colo. 214; Brew, and 



