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; Ballard 809, Page Lake, 

 Carver Co. ; Ballard 359, Helena, Scott Co. ; Ballard 62Jf, Chaska; 

 Leiberg 63, Blue Earth Co. ; Eerrick 286, Minneapolis; the rest 

 are var. elatum i^uit.). Eerrick 287, Minneapolis; Bailey 326, 

 St. Louis river; Sandberg 533, Chisago Lake. 



SCHEUCHZERIA Linn. Gen. 301 (1737). 

 Benth. and Hook., Gen. PL III, 1012; Durand, ind. Gen. P/ian. 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 

 {Eeer). 



Schenchzeria 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., 

 PI. 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; Baileij 305, St. Louis 

 river; Sandberg 53Jf, Chisago Co. 



VI. ALISMACEAE. Water-Plantain Family. 



Endllchcr, (icn. PL 127 (1840) in part; Benth. and Hook. Gen. PL 

 III. 1003 (1883t, excl. Tiilnis II, Butomeae; Buchenau, Em/I. and Prantl, 

 Nat. PJlcmz. 2, I, 227 (1889). 



Genera: 10; temperate and warmer regions. 

 Species: 55 ± living; 4-5 extinct. 



