418 METASPERMAE OF THE MINNESOTA VALLEY. 
North America: Greenland and Labrador to Mackenzie 
and Alaska; S. to N. S., N. Br., N. Y., N. J. and Penn.; W. to 
Minn., Dak., Iowa and Neb.; S. in mts. to San Francisco and 
Nevada. 
Minn. valley: Forest district and probably to Chippe- 
wa river valley; tamarack swamps and wet woods. 
Hers.: Ballard 357, Helena, Scott Co.; Ballard 659, 
Waconia; Taylor 210, Janesville; Sheldon 122, Madison Lake; 
Taylor 177, Janesville; Bailey 282, St. Louis river; Kassube 
201, Minneapolis; Sandberg 464, Chisago lake; Sandberg 465, 
Red Wing; Herb. Sheld. 1776, Ramsey Co. 
NYMPHODES Lupw. Defin. 23 (17387). 
Limnanthemum GMEL Nov. Act. Petrop. XIV, 527 (1769). 
Waldschmidtia Wiee, Prim. Holst. 19 (1780). 
Villarsia GmMEL. Act. Petrop. XV (1791) not Vent. 
Schweyckerta C.C.Gmewu. Fl. Bad. I, 447 (1805). 
Baillon, Hist. Pl. X, 144; Benth. and Hook., Gen. Pl. II, 819; Durand, 
Ind. Gen. Phan. 278; O. Kuntze, Rev. Gen. II, 429. 
Living species: 26 described; 12 reduced; temperate 
and tropical regions. N. America, 2; S. Sts., 2; 1 other regions 
except W. of Rocky mts. W. Tex., I. 
Nymphodes lacunosum (VENT.) OK. Rev. Gen. II, 429 
(1891). 
Villarsia lacunosa (VENT.) Choix. 9 (1808). 
? Limnunthemum lacunosum Mtcux. Fl. N. Am. I (1803) 
Villarsia cordata Evi. Sk. I, 280 (1821). 
Wats. and Coult , Gray’s Man. 6 ed. 353; Britt., Fl. N. J. 174; Upham, 
Fl. Mion. 113; Mac., Fl. Can. I, 327; Chap., Fl. S. St. 358; Cov.. Fl. Ark. 
204; Gray, Syn. Fl. II, 1, 128. 
North America: N.S., N. Br., Ont. to Minn.; 8. to N. 
Eng., N. J., Fla.; W. to Ark., La. and Miss. 
Minn. valley: Reported from N. edge; rare; floating 
in quiet streams or lakes. 
GENTIANA Linn. Gen. 197 (1787). 
ne Pneumonanthe and Hippion ScumipT, Roem. Arch. I, 8 
Ciminalis ADANS. Fam. II, 504 (1768). 
Asterias, Coelantha, Dasystephana, Ericoila, Eurythalia 
and Gentianella Borkw. Roem. Arch. I, 23 (1796). 
Ericala Don, Trans. Linn. Soc. XVIT, 511 (1837). 
Glyphospermum, Selatium, Ulostomaand Eudoxia G. Don, 
Gen. Syst. IV, 195, 196 (1638). 
Varasia PHILLIPPI, Fl. Atacam., 35, t. 5 (1860). 
Baillon, Hist. Pl. X, 140; Benth. and Hoox., Gen. Pl. II, 815; Durand, 
Ind. Gen. Phan. 278. « 
