344 METASPERMAE OF THE MINNESOTA VALLEY. 
Euphorbia glyptosperma ENGELM. Bot. Mex. Bound. II, 
187 (1859). 
E. polygonifolia Hoox. FI. Bor.-Am. II, 140 (1848) in part. 
Wats. and Coult., Gray’s Man. 6 ed. 453; Webb., Fl. Neb.123; Upbam, 
Fl. Minn. 123; Mac., Fl. Can. I, 425; Coult., Fl. Colo. 328; Wats., Fl. Calif. 
II, 74; Wats., King Exp. 320; Roth., Wheel. Exp. 246. 
North America; Ont., Saskatchewan, Brit. Col. to 
Pac.; S. to Minn., Dak., Neb., Mo., Ill., Wisc. and Colo. 
Minn. valley: Throughout; common; sandy places and 
embankments. ; 
Hers.: Sheldon 966, Sleepy Eye; Sheldon 1557, Lake 
Benton; Sheldon 1169, New Ulm; Sheldon 1597, Lake Benton; 
Ballard 161, Chaska; Taylor 784, Glenwood; Sheldon 1102; 
Springfield; Ballard 527, Cleary’s lake, Scott Co.; Holzinger 
204, Winona Co.; Oestlund 166, Minneapolis; Herrick 264, Min- 
neapolis; Holzinger 205, Winona Co.; Herb. Shel. 1925, Minne- 
apolis. 
Euphorbia serpyllifolia Pers. Syn. I, 14 (1807). 
Wats. and Coult., Gray’s Man. 6 ed. 453; Webb., Fl. Neb. 123; Mac., 
Fl. Can. I, 424; Upham, Fl. Minn. 123; Wats., Fi. Calif. II, 74; Coult., Fl. 
Colo. 326; Greene, Fl. Fran. 9]; Wats., King Exp. 320; Roth., Wheel. Exp. 
246; Engl]. Pax, Nat. Pflanz. III, 5, 105. 
North America: Columbia river, Moose mt., N. W.T., 
Saskatchewan; S. along Pac. to Monterey and Gt. Basin region 
to Tex. and Mex.; E. to Kan., Neb., Dak. and Minn. 
Minn. valley; Throughout; frequent; sandy or waste 
places or embankments. 
HerRB.: Taylov 1152, Glenwood; Herb. Sheld. 1900, 
Cedar lake, Hennepin Co. 
Euphorbia geyeri ENGeELM. Pl. Lindh. I, 52 (1845). 
Wats. and Coult., Gray’s Man. 6 ed. 452; Upham, Fl. Minn. 123; Webb., 
Appx. Neb. 33. 
North America: Ill., Wisc., Minn., Kan., Neb. to Tex. 
Minn. valley: Reported from N. E. district; sandy 
places or along railway embankments. 
LIX. STELLARIACEAE. Water-Starwort 
Family. 
Benth. and Hook., Gen. Pl. I, 673 (1862)—sub Halorageae; Baillon, 
Hist. Pl. V, 250 (1874)}—sub Huphorbiaceae; Pax in Engler and Prantl, Nat. 
Pflanz. 3, V, 120 (1890)—Callitrichaceae;.Endlicher, Gen. Pl. 268 (1840)— 
Callitrichinae. 
Genera: 1; cosmopolitan in fresh waters; aquatic. 
Species: 1-2; 25 (Hegelmaier). 
