5382 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 Harth Co.; 
Sheldon 768, Sleepy Eye; Kassube 135, Minneapolis; Herrick 
155, Minneapolis; Sandberg 312, Goodhue Co.; Herb. Moyer 131, 
Minnesota valley, near Montevideo. 
Silphium integrifolium Micux. Fl. N. Am. II, 146 (1803). 
S. laevigatum Purso, Fl. Am. II (1814). 
S. speciosum Nutr. Trans. Am. Phil. Soc. VII, 341 (1841). 
S. integrifolium 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; Cov., 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 8S. E. district; rare or 
local; prairies and hillsides or embankments. 
Silphium terebinthinaceum Jacq. Hort. Vindob. I, 43 
(1762). 
Wats. and Coult., Gray’s Man. 6 ed. 270; Mac., Fl. Can. I, 239; Cov., 
F]. Ark. 198; Engl. Hoffmann, Nat. Pflanz. IV, 5, 218; Gray, Syn. FI. I, 
2, 242. 
North America: Ohio, Mich., Wisc., Minn. and Dak. 
to Neb., Tex., Ark., Ga., La. 
Minn. valley: S. central district; rare; prairies and 
banks. 
Silphium laciniatum Linn. Spec. 919 (1753). 
S. spicatum Potr. Suppl. V, 157 (1811). 
S. gunmiferum Evi. Sk. II, 426 (1824). 
Wats. and Coult , Gray’s Man. 6 ed. 270; Webb., F!. Neb. 147; Upham, 
Fl. Minn. 78; Coult., Fl. Colo. 179; Chap., Fl. 8S. St. 220; Cov., Fl. Ark. 
193; Engl. Hoffmann, Nat. Pflanz. IV, 5, 218; Gray, Syn. Fl. I, 2, 242: 
Coult., Fl. Tex. 205. 
North America: Minn., Wisc. and Dak. to Neb., Colo., 
Ark. and Tex.; EH. to Alabama. 
Minn. valley: S. central and S. W. districts; E. to 
Waseca; banks, hillsides and prairies. 
