42 METASPERMAE OF THE MINNESOTA 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 732, Glenwood; Bollard 809, Page Lake, 

 Carver Co.; Ballard359, 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. 



SCHEUCHZERIA LINN. Gen. 301 (1737). 



Benth. and Hook., Gen. PI 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; Lamprocar piles, Greenland 

 (Heer). 



Scheiichzeria palustris LINN. Spec. 338 (1753). 

 S. paniculata GILIB. Exerc. Phyt. II, 502 (1792). 

 S. asiatica MIQ. Fl. Ind. Bat. Ill, 243 (1837?). 



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. Pflanz. II. 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. 



HERB.: Taylor 1113, Glenwood ; Bailey 305, St. Louis 

 river; Sandberg 534, Chisago Co. 



VI, ALISMACEAE. Water-Plantain Family. 



Endlicher, Gen. PI. 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. 



