842 METASPERMAE OF THE MINNESOTA VALLEY. 
Fossil species: Tertiary; Bonn, Bohemia; Fuphor- 
bioides (Wessel and Weber); Euphorbiophyllum (Ettinghausen). 
Euphorbia dietyosperma F'iscH. and Mgy. Ind. Sem. 
Petrop. 87 (18385). 
E. arkansana ENGELM. and Gray, PI. Lindh. I. 53 (1845). 
Wats. and Coult., Gray’s Man. 6 ed. 455; Webb., FI. Neb. 123; Upham, 
Fl. Minn. 123; Coult., Fl. Colo. 327; Wats., Fl. Calif. II, 75; Greene, FI. 
Fran. 90; Roth., Wheel, Exp. 248; Wats., King Exp. 320; Engl. Pax, Nat. 
Pflanz. ITI, 5, 110. 
North America: Oregon to Santa Barbara; E. toTex., 
Ky., Iowa and Minn. 
Minn. valley: W. districts; prairies; infrequent or 
rare. 
HERB.: Moyer 217, Montevideo. 
Euphorbia heterophylla Linn. Amoen. Acad. III, 112 
(1756). 
E. cyathophora Murr. Prodr. Gott. (1770). 
Wats. and Coult., Gray’s Man. € ed. 454; Webb., Fl. Neb. 123: Upham, 
Fl. Minn. 123; Cov., Fl. Ark. 217; Engl. Pax, Nat. Pflanz. III, 5, 107. 
North America: Minn., Ill, Iowa, Neb., Kan., Mo., 
Ark. and Tenn. ? 
Minn. valley: Throughout; local or infrequent; sandy 
slopes and sunny banks of streams or lakes. 
HERB.: Sheldon 797, Sigel township, Brown Co.: Shel- 
don 941, Redwood Falls; Oestlund 170, Minneapolis; Herrick 
268, Minneapolis; Herrick 269, Minneapolis. 
Euphorbia corollata Linn. Amoen. Acad. III, 122 (1756). 
Galarhoeus corollatus Haw. Succ. II, 161 (1812). 
Wats. and Coult., Gray’s Man. 6 ed. 454; Rritt, Fl. N. J. 214; Mace., 
Fl. Can. I, 425; Upham, Fl. Minn. 123; Webb., Fl. Neb. 123; Cov., Fl. 
Ark. 217. 
North America: L. Huron to Ont. and Mass.; 8S. toN. 
Y., N. J., Fla.; W. to Minn., Dak., Neb., Ark. and La. 
Minn. valley: Throughout; frequent; dry or openand 
sandy fields. 
Hers.: Ballard 644, Chaska; Leonard i#, Fillmore 
Co.; Holzinger 207, Winona Co.; Herrick 267 Minneapolis; Oest- 
lund 169, Minneapolis; Kassube 213, Minneapolis; Sandberg 491, 
Goodhue Co. 
Euphorbia marginata Pursu, Fl. Am. II, 607 (1814+). 
E. leucoloma Rar. in Herb. Phil. (1833). 
Wats. and Coult., Gray’s Man. 6ed. 454; Webb., Fl. Neb. 123; Upham, 
Fl. Minn. 123; Coult., Fl. Colo. 327; Engl. Pax, Nat. Pflanz. III, 5, 106. 
North America: Minn., Dak., Colo., Neb., Kan. and 
Mo.; spreading eastward to Ohio. 
