42 METASPERMAE OF THE MINNESUTA VALLEY. 
Europe; Asia; Africa; S. to Caucasus and Dahuria. 
North America: Atlantic coast from Labrador to N. J.; 
also San Francisco to Arctic ocean and Alaska; interior from 
mts. of Colo. to N. Mex. and E. to the coast in saline places. 
Minn. valley: Throughout; S. central district, abund- 
ant; marshes and peat bogs. 
HERB.: Taylor 782, Glenwood; Ballard 809, Page Lake, 
Carver Co.; Ballard 859, Helena, Scott Co.; Ballard 624, Chaska; 
Leiberg 65, Blue Earth Co.; Herrick 286, Minneapolis; the rest 
are var. elatum (Nutt.). Herrick 287, Minneapolis; Bailey 326, 
St. Louis river; Sandberg 533, Chisago Lake. é 
SCHEUCHZERIA Linn. Gen. 301 (1737). 
Benth. and Hook., Gen. Pl. III, 1012; Durand, Ind. Gen. Phan. 453; 
Engler and Prantl, Nat. Pflanz. 2, I, 225 (Buchenau and Hieronymus); 
Schenck, Palaeophyt. 388. 
Living species: 1; N. temperate and boreal regions. 
Fossil species: Cretaceous; Lamprocarpites, Greenland 
(Heer). 
Scheuchzeria palustris Linn. Spec. 338 (1753). 
S. paniculata Gitis. Exerc. Phyt. II, 502 (1792). 
S. asiatica M1qQ. Fl. Ind. Bat. ITI, 243 (18877). 
Wats. and Coult., Gray’s Man. 6 ed. 558; Britt., Fl. N. J. 256; Coult., Fl, 
Colo. 364; Upham, Fl. Minn. 138; Mac., Fl. Can. II, 81; Wats., Fl. Calif. II, 
199; Led., Fl. Ross. IV. 37; Nym., Fl. Eur.; Hook., Fl. Gt. Brit. 430; Richt., 
Pl. Eur. 19; Herd., Fl. Eur. Russ. 124; Engl. Buchenau, Nat. PAlanz. IL. 1, 
225; Hart., Fl. Scand. I, 416. 
Middle and N. Europe; N. Asia. 
North America: N. Br. Ont. to Hudson Bay, Georgian 
Bay, Keewatin and Rocky Mts.; S. to N. J. and W. to Minn., 
Dak., Mont. and Colo.; also Washington to Sierra Co., Calif. 
Minn. valley: Throughout, but local or rare; peat 
bogs and wet places in marshy meadows. 
HEgsB.: Taylor 1118, Glenwood; Bailey 305, St. Louis 
river; Sandberg 584, Chisago Co. 
VI. ALISMACEAE. Water-Plantain Family. 
Endlicher, Gen. Pl. 127 (1840) in part; Benth. and Hook. Gen. Pl. 
III. 1003 (1883), excl. Tribus II, Butomeae; Buchenau, Engl. and Prantl, 
Nat. Pflanz. 2, I, 227 (1889). 
Genera: 10; temperate and warmer regions. 
Species: 55+ living; 4-5 extinct. 
