380 METASPERMAE OF THE MINNESOTA VALLEY. 
Fossil species: Trapa natans is found in Tertiary of 
Alaska, Colo., Portugal, Japan and Saghalin, and in Quater- 
nary at Cromer. 
Circaea alpina Linn. Spec. 9 (1753). 
Wats. and Coult., Gray’s Man. 6 ed. 193; Britt., Fl. N. J. 111; Mac., 
Fl. Can. I, 174; Hook., Fl. Gt. Brit. 159; Upham, Fl]. Minn. 57; Chap., Fl. 
S. St. 143; Forbes and Hems., Fl. Sin. 310; Led., Fl. Ross. II, 114; Nym., 
F). Eur.; Miyabe, Fl. Kur. 235; Herd., Fl. Eur. Russ. 50; Wats., King 
Exp. 1138; Wats., Bibl. Ind. I, 363; Hart., Fl. Scand. I, 266. 
Europe; N. and W. Asia to Himalayas, India, China 
and Kurile Isls.; N. Africa. 
North America: Labrador to N. Eng., N. J. and Ga.; 
W. to Ind. and Minn.; N. to Man., N. W. T. and Alaska. 
Minn. valley: Forest district to Blue Earth Co.; deep 
woods and near springs or bogs. 
HERB.: Sheldon 269, Madison Lake; Roberts 39, Dul- 
uth; Herrick 111, Minneapolis; Holway 28, Vermilion lake; 
Sandberg 204, Chisago Co.; Bailey 207, Vermilion lake. 
Circaea lutetiana Linn. Spec. 8 (1753). 
C. lutetiana var. canadensis LINN. Spec. 8 (1753). 
C. canadensis HILL. Veg. Syst. 10 (1762). 
Wats. and Coult., Gray’s Man. 6 ed. 193; Britt., Fl. N. J. 111; Webb., 
Fl. Neb. 125; Mac., Fl. Can. I, 175; Chap., Fl. S. St. 148; Hook., Fl. Gt. 
Brit. 159; Upham, Fl. Minn. 57; Forbes and Hems., Fl. Sin. 310; Led., Fl. 
Ross. II, 113; Nym., Fl. Eur.; Herd., Fl. Eur. Russ. 50; Cov., Fl. Ark. 184; 
Wats., Bibl. Ind. I, 363; Hart., Fl. Scand. I, 265. 
Europe; N. Africa; N. and W. Asia to Caucasus, Ural 
and Altai Siberia and Himalayas to China. 
North America: N. S., N. Br., Q., Ont. to N. Eng., N. 
J. and Ga.; W. to Minn., Neb., Wyoming and Ark. 
Minn. valley: Throughout, especially in forest dis- 
trict; damp woods and along streams or near lake shores. 
HERB.: Sheldon 1038, Sleepy Eye; Sheldon 805, Sigel 
township, Brown Co.; Sheldon 940, Redwood Falls; Taylor 886, 
Glenwood; Ballard 493, Prior’s lake, Scott Co.; Ballard 587, 
Cleary’s lake, Scott Co.; Ballard 672, Waconia; Ballard 857, 
Page lake, Carver Co.; Sandberg 203, White Rock; Oestlund 58, 
Minneapolis; Holzinger 79, Winona Co.; Oestlund 60, Minne- 
apolis; Herrick 110, Minneapolis; Winchell 5, Minnetonka. 
(ENOTHERA Linn. Gen. 318 (1737). 
Onagra, Baumannia, Xylopleurum, Kneiftia, Lavauxia, 
Pachylophus, Megapterium, Calylophus, Godetia, Boisduvalia, 
Agassizia, Hartmannia SpAcH, Suit. Buff. IV, 357 seq. (1839). 
Meriolix Rar. Am. Mo. Mag. (1819). 
