384 METASPERMAE OF THE MINNESOTA VALLEY. 



Peutapteropliylluin Dill. Nov. Gen. 7 (1719). 

 Pentapteris Hall. Helv. I, 454 (1768). 

 Eiiyclria Velloz. F1. Flum. I, 150 (1827). 

 yHylas BiGEL. ex Endl. Gen. 6135 (1840). 

 Belioukaudas Celt, ex Adans Fam. PI. II, 471 (1763). 

 BailloD, Hist. PI. VI, 298; Benth. and Hook., Qen. PI. I, 676; Durand, 

 Ind. Gen. Phan. 122; Schenck, Palaeophyt. 632 



Living species: 18; cosmopolitan; North America, 12; 

 Russia, 3; Europe, 3; E. Sts., 7; Mexico, 6; S. Sts., 4; Canada, 

 5; California, 2; Rocky mts., 2; PI. King., 1. 



Fossil species: Tertiary, Japan (Nathorst); Quater- 

 nary, Radobo (Unger); forest bed of Cromer? Mijriophyllites. 



Myriophyllum heterophyllum Michx. F1. N. Am. II, 191 

 (1803). 



Potamogeton verticillatum Walt. F1. Car. 90 (1788) not Linn. 

 Wats, and Coult., Gray's Man. 6 ed. 181; Mac, Fl. Can. I, 167; Up- 

 ham, Fl. Minn. 5r; Britt., FL N. J. 105; Chap., Fl. S. St. 143; Couli.,Fl. 

 Tex., Ill; Morong, Torr. Bull. XVIII, 244; Cov., Fl. Ark. 182; Wats., 

 Bibl. Ind. I, 356. 



North America: Ont. to Georgian Bay; S. to N. Eng., 

 N. Y., N. J. to Fla.; W. to Minn., Mo., Ark., La. and W. Tex. 



Minn, valley: Reported from ponds and lakes, south- 

 west districts; infrequent. 



Myriophyllum Yerticillatum Linn. Spec. 992 (1753). 

 Wats, and Coult., Gray's Man. 6 ed. 181; Mac, Fl. Can. I, 167; Coult., 

 Fl. Colo. 100; Upham, Fl. Minn. 56; Chap., Fl. S. St. 143; Hook., Fl. Gt. 

 Brit. 153: Trautv., Fl. Sib. 55; Forbes and Hems., Fl. Sin. 293; Led., Fl. 

 Ross. II, 118: Nym., Fl. Eur.; Herd., Fl. Eur. Russ. 50; Morong, Torr. 

 Bull. XVIII, 242; Wats., King Exp. 102; Wats., Bibl. Ind. I, 357; Hart., 

 Fl. Scand. I, 267. 



Europe; N. Africa; N. and W. Asia to India and China. 



North America: Ont. to Man. and lat. 52° N. ; S. to N. 

 Eng., N. Y., Fla.; W. to Minn., Iowa and Colo. 



Minn, valley: S. central district; deep water in lakes 

 and ponds. 



Herb. : Sheldon 370, Duck lake. Blue Earth Co. 



Myriophyllum spicatum Linn. Spec. 992 (1753). 



Wats, and Coult., Gray's Man. 6 ed. 181; Britt., Fl. N. J. 105; Mac, 

 Fl. Can. I, 166, .529; Coult., Fl. Colo. 99; Hook., Fl. Gt. Brit. 152; Brew, 

 and Wats., Fl. Calif. I, 215; Upham, Fl. Minn. 56; Forbes and Hems., Fl. 

 Sin. 293; Led., Fl. Ross. II, 118; Nym., Fl. Eur.; Herd., Fl. Eur. Russ. 50; 

 Cov., Fl. Ark. 182; Wats., Bibl. Ind. I, 357; Morong, Torr. Bull. XVIII, 

 241; Hart , Fl. Scand. I, 267; Greene, Fl. Fran. 228. 



All Europe and N. Africa; N. and W. Asia to Caucasus 

 and India; China. 



North America: Newf., N. B., Q., Ont. to Brit. Col., 



