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., PI. Eur. 20; Herd., Fl. Eur. Russ. 124; Engl. Buch- 

 enau, Nat. Pflanz. II. 1, 231; Mac, Fl. Can. II, 368; Wats., King Exp. 340; 

 Gov., 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), Bollard 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 406, 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 1073, Spring- 

 field; Ballard 739, Waconia; Ballard 808, Page Lake, Carver 

 Co.; Ballard 830, Page Lake; F. diversifolia, Herrick 288, Min- 

 neapolis; also F. angustifolia, Bailey 151, Vermilion Lake ; Sand- 

 berg 536, Red Wing; F. latifolia, Sandberg 537, Vasa; Oestlund 

 188, Minnehaha; F. hastata, Bailey 154, Vermilion Lake; Herb. 

 Sheld. 1683, forma angustifolia (Engelm.), Minneapolis; Herb. 

 Moyer 230, forma obtusa (Willd.), Montevideo. 



VII. HYDROCHARITACEAE. Frog's - Bit 

 Family. 



Endlicher, Gen. PI. 160 (1840); Benth. and Hook. Gen. PI. Ill, 448 

 (1883); Ascherson and Giirke, Engl, and Prantl, Nat. Pflanz. 2, 1, 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. Rich. Mx. Fl. Bor.-Am. I, 20 (1803). 

 Udora Nutt. Gen. II, 242 (1818). 



Apalanthe and Egeria Planch. Ami. Nat.Sci. 3, XI, 75,79 (1849), 

 Aiiacharis Bab. and Planch. Trans. Bot. Soc. Edin. Ill, 27 (1852). 

 Benth. and Hook., Gen. PL III, 450; Durand, hid. Gen. Phan. 383; 

 Engler and Prantl, Nat. Pflanz. 2, 1, 250 (Ascherson and Giirke). 



Living species: 6; N. and S. America; Mid. and N. 

 Europe (introduced); U. S., 1, 



