384 METASPERMAE OF THE MINNESOTA VALLEY. 
Pentapterophyllum Diu. Nov. Gen. 7 (1719). 
Pentapteris HALL. Helv. I, 454 (1768). 
Enydria VELLOz. Fl. Flum. I, 150 (1827). 
? Hylas BIGEL. ex ENDL. Gen. 6135 (1840). 
Belioukandas CELT. ex Adans Fam. Pl. II, 471 (1763). 
Baillon, Hist. Pl. VI, 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; Pl. King., 1. 
Fossil species: Tertiary, Japan (Nathorst); Quater- 
nary, Radobo (Unger); forest bed of Cromer? Myriophyllites. 
Myriophyllum heterophyllum Micux. Fl. N. Am. II, 191 
(1803). 
Potamogeton verticillatum WALT. FI. Car. 90 (1788) not Linn. 
Wats. and Coult., Gray’s Man. 6 ed. 181; Mac., Fl. Can. I, 167; Up- 
ham, Fl. Minn. 5¢; Britt., Fl. N. J. 105; Chap., Fl. S. St. 143; Coult., Fl. 
Tex., 111; 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. 
Myriophyllam verticillatum 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. 8. 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; Maze., 
FI. Can. I, 166, 529; Coult., Fl. Colo. 99; Hook., Fl. Gt. Brit. 152; Brew. 
and Wats., Fl. Calif. I, 215; Upham, F]. Minn. 56; Forbes and Hems., FI. 
Sin, 293; Led., Fl. Ross. II, 118; Nym., Fl. Eur.; Herd., Fl. Eur. Russ. 50; 
Cov., Fl. Ark. 182; Wats., Bibl. Ind. I, 357; Morung, 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., 
