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., Pla. 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). 



Carduus discolor Nutt. Gen. II, 130 (1818). 



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



Cnicus altissimus var. discolor Gkay, 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.: Ballard 761, Waconia; Taylor 7^J, Glenwood; 

 Herrick 175, Minneapolis; Oestlund 10 Jf., 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. .1. 151, in var.; 

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

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

 Herb. Wickersheim 85, Ash lake, Lincoln Co. ; Herb. Moyer 151^, 

 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. hoolerianum 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 



