532 METASPERMAE OF THE MINNESOTA VALLEY. 



Wats, and Coult., Gray's Man. 6 ed. 271; Webb., Fl. Neb. 147; Upham, 

 Fl. Minn. 78; Chap., Fl. S. St. 221; Mac, Fl. Can. I, 239, 549; Cov., Fl. 

 Ark. 193: Engl. Hoffmann, Nat. Pflanz. IV, 5, 218; Gray. Syn. Fl. I, 2, 

 240. 



North America: Detroit river to Minn, and Neb. ; S. 

 to Ark., mts. of Ga. and La. 



Minn, valley: Throughout; gullies and ravines, edges 

 of woods and thickets; wet places. 



Herb.: Sheldon 1298, Lake Benton; Taylor 723, Min- 

 nesota lake; Ballard 391, Jordan, Scott Co. ; Ballard 772, Swan 

 lake, Carver Co.; Taylor 702, Minnesota lake; Sheldon 901, 

 Sleepy Eye; Sheldon 374, Lake Ballentyne, Blue Earth Co.; 

 Sheldon 768, Sleepy Eye; Kassuhe 135, Minneapolis; Herrick 

 155, Minneapolis; Sandberg 312, Goodhue Co. ; Herh. Moyer 131, 

 Minnesota valley, near Montevideo. 



Silphium integrifolium Michx. Fl. N. Am. II, 146 (1803). 

 S. laevifjatum Pursh, Fl. Am. II (1814). 

 S. speciosum Nutt. Trans. Am. Phil. Soc. YII, 341 (1841), 

 S. integrifoUum var. laeve T. and G. Fl. II, 279 (1841), 

 Wats, and Coult., Gray's Man. 6 ed. 271; Webb., Fl. Neb. 147; Upham, 

 Fl. Minn. 78; Gov., Fl. Ark. 193; Gray, Syn. Fl. I, 2, 240; Coult., Fl. Tex. 

 205. 



North America: Mich, to Minn, and Neb.; S. to Mo., 



Ark., Tex. and W. Ga. 



Minn, valley: Reported from S. E. district; rare or 

 local; prairies and hillsides or embankments. 



Silpliium terebiiithiaaceum Jacq. Hort. Vindob. I, 43 



(1762). 



Wats, and Coult., Gray's Man. 6 ed. 270; Mac, Fl. Can. I, 239; Cov., 

 Fl. Ark. 193: Engl. Hoffmann, Nat. Pflanz. IV, 5, 218; Gray, Syn, Fl. I, 

 2. 242, 



North America: Ohio, Mich., Wise, Minn, and Dak, 



to Neb., Tex., Ark., Ga., La. 



Minn, valley: S. central district; rare; prairies and 

 banks. 



Silpliium laciniatum Linn. Spec. 919 (1753). 

 S. spicatuvi Pom. Suppl. V, 157 (1811). 

 S. gummiferum Ell. Sk. II, 426 (1824). 

 Wats, and Coult , Gray's Man, 6 ed. 270; Wel)b., Fi. Neb 147; Upham, 

 Fl. Minn. 78; Coult., Fl. Colo. 179; Chap., Fl. S. St. 220: Gov., Fl. Ark, 

 193; Engl. Hoffmann, Nat. Pllanz. IV, 5, 218; Gray, .Syn. F^l. I, 2, 242: 

 Coult., Fl. Tex. 205. 



North America: Minn., Wise, and Dak. to Neb., Colo., 

 Ark. and Tex. ; E. to AlabS,ma. 



Minn, valley: S. central and S. W. districts; E. to 

 Waseca; banks, hillsides and prairies. 



