LIST OF HIGHER SEED PRODUCING PLANTS. 45 
Wats. and Coult., Gray’s Man. 6 ed. 554; Upham, Fl. Minn. 138; Mac., Fl. 
Can. II, 77; Wats., Fl. Calif. II. 201; Webb., Fl. Neb. 97; Coult., Fl. Colo. 
361; Chap., Fl. So. St. 449; Britt., Fl. N. J. 255; Hook., Fl. Gt. Brit. 428; 
Nym., Fl. Eur.; Richt., Pl. Eur. 20; Herd., Fl. Eur. Russ. 124; Engl. Buch- 
enau, Nat. Pflanz. II. 1, 231; Mac., Fl. Can. II, 368; Wats., King Exp. 340; 
Cov., Fl. Ark. 228; Hart., Fl. Scand. I. 416. 
Europe; Asia to N. W. India. 
North America: Atl. to Pac. in Can.; N. to 60° N. lat.; 
S. to Calif. and N. Nev.; from Rockies E. to N. Eng., N. J. 
and Fla. 
Minn. valley: Throughout in the various forms; 
marshes, edges of ponds and quiet streams; abundant. 
HERB.: Forma gracilis (Pursh), Ballard 897, St. Boni- 
facius; Ballard 831, Page Lake; F. obtusa (Willd.), Ballard 607, 
Prior’s Lake; Ballard 731, Benton; F. hastata (Pursh), Taylor 
642, Minnesota Lake; Taylor 405, Buffalo Lake, Waseca Co.; 
Taylor 22, Elysian; Sheldon 1567, Lake Benton; Ballard 666, 
Waconia; Ballard 163, Chaska; F. latifolia (Willd.), Sheldon 921, 
Sleepy Eye; F. angustifolia (Engelm.), Sheldon 1078, Spring- 
field; Ballard 739, Waconia; Ballard 808, Page Lake, Carver 
Co.; Ballard 880, Page Lake; F. diversifolia, Herrick 288, Min- 
neapolis; also F. angustifolia, Bailey 151, Vermilion Lake; Sand- 
verg 686, Red Wing; F. latifolia, Sandberg 537, Vasa; Oestlund 
188, Minnehaha; F. hastata, Bailey 154, Vermilion Lake; Herb. 
Sheld. 1688, forma angustifolia (Engelm.), Minneapolis; Herb. 
Moyer 230, forma obtusa (Willd.), Montevideo. 
VI. HYDROCHARITACEAE. Frog’s - Bit 
Family. 
Endlicher, Gen. Pl. 160 (1840); Benth. and Hook. Gen. Pl. III, 448 
(1883); Ascherson and Girke, Engl. and Prantl, Nat. Pflanz. 2, I, 238 (1889). 
Genera: 14; cosmopolitan; 11 in fresh water; 3 in In- 
dian ocean, African coast waters, Red sea, Australian waters 
and the Pacific. 
Species: 60 living; 1-2 extinct?. 
ELODEA L. C. Ricw. Mx. Fl. Bor.-Am. I, 20 (1803). 
Udora Nutt. Gen. II, 242 (1818). 
Apalanthe and Egeria PLANCH. Ann. Nat. Sci. 3, X1,75,79 (1849), 
Anacharis BAB. and PLANCH. Trans. Bot. Soc. Edin. ITI, 27 (1852). 
Benth. and Hook., Gen. Pl. III, 450; Durand, Ind. Gen. Phan. 383; 
Engler and Prantl, Nat. Pflanz. 2, I, 250 (Ascherson and Girke). 
Living species: 6; N. and S. America; Mid. and N. 
Europe (introduced); U. S., 1. 
