40 METASPERMAE OF THE MINNESOTA VALLEY. 
Europe; Asia; North Africa; Philippines; Australia. 
North America: Anticosti, N.S. Q., Ont., N. E. T., 
Saskatchewan and Man.; S. toN J. and Fla.; W. to Oregon, 
Utah, Calif. and N. Mex. 
Minn. valley: Reported from S. central region; peat 
bogs; rare. 
HERB.: ?Sandberg 580, Goodhue Co. 
IV. NAJADACEAE. Naiad Family. 
Najadeae (Tribus VII, Najadaceae) Benth. and Hook., Gen. Pl. 
III. 1011 (1883); Magnusin Eng. and Prantl, Nat. Pflanz. 2, I. 214 (1889) 
Genera: 1; temperate and tropical regions. 
Species: 10-12 living; 1-2 extinct. 
NAJAS Linn. Gen. 701 (1737). 
Fluvialis MicHEex. Nov. Gen.t.8 1729),and Pers. Syn. II. 530 (1807). 
Caulinia WitLtp. Mem. Acad. Berl. 87 (1798). 
Ittnera GmEL. Fl. Bad. III, t. 4 (1808). 
Benth. and Hook., Gen. Pl. III, 1018; Durand, Ind. Gen. Phan. 453; 
Engler and Prantl, Nat. Pflanz. 2, I, 217 (Magnus); Schenck, Palaeophyt., 
380. 
Living species: 10-12; temperate and tropical regions: Eu- 
rope, 4; Russian Europe, 3; N. America, 4; E. Sts., 3; Cali- 
fornia, 2; Canada, 1; So. Sts., 3; Pl. Wheel., 1. 
Fossil species: Upper cretaceous and tertiary. 
Najas flexilis(WILLD.) RostK. and Scum., Fl. Sed. 382(1824). 
Caulinia flexilis WILLD. Act. Acad. Berol. 88 (1798). 
Fluvialis flecilis Pers. Syn. 11, 530 (1807). 
Najas graminea Rostk. in Link. H. C. I, 287 (1829). 
Wats. and Coult., Gray’s Man. 6 ed. 566; Britt., Fl. N. J. 259; Mac., Fl- 
Can. II. 91; Upham, Fl. Minn. 136; Chap., Fl. So. St. 444; Wats., Fl. Calif. 
II, 191; Nym., Fl. Eur.; Hook., Fl. Gt. Brit. 439; Richt., Pl. Eur. 18; Herd. 
F). Eur. Russ. 126; Engl. Magnus, Nat. Pflanz. II. 1, 217; Hart., Fl. Scand. 
I, 404; Webb., Appx. Neb. 22. 
Great Britain, Scandinavia, N. Germany, Russia, Si- 
beria; Mexico; W. Indies. 
North America: N. S., N. Br., Q., Ont. to Man., Brit. 
Col. and Pac.; 8S. to N. Eng., N. J. and S. Car.; W. to Minn., 
Iowa and Neb.; S. to San Francisco on Pac. coast. 
Minn. valley: Throughout; infrequent or locally 
abundant; lakes, ponds and sluggish streams. 
HERB.: Taylor 450, Lake Helena, Waseca Co.; Sheldon 
910, Cottonwood river, near Sleepy Eye; Holzinger 264, Winona 
Lake; Oestlund 183, Minnehaha; Bailey 389, Mud Lake. 
