384 METASPERMAE OF THE MINNESOTA VALLEY. 



Pentapterophyllum DILL. Nov. Gen. 7 (1719). 

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

 Enydria VELLOZ. Fl. Flum. I, 150 (1827). 

 ? Hylas BIOEL. ex ENDL. Gen. 6135 (1840). 



Belioukandas CELT, ex Adans Fam. PI. II, 471 (1763). 

 Baillon, Hist. PL YI, 298; Benth. and Hook., Gen. PL 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? Myriophyllites. 



Myriophyllum heterophyllum MICHX. Fl. N. Am. II, 191 



(1803). 



Potamogeton verticillatum WALT. Fl. Car. 90 (1788) not Linn. 

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

 ham, Fl. Minn. 5f>; Britt., Fl. N. J. 105; Chap., Fl. S. St. 143; Coult., Fl. 

 Tex., Ill; Morong, Ton. 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., 



