LIST OF HIGHER SEED-PRODUCING PLANTS. 33 



Sparganium androcladum (Engelm. ) Morong, Torr. Bull 

 XV. 78 (1888). 



S. simplex var. androcladum Engelm. Gray's Man. 5 ed. 481 (1867). 

 S. ramosum AuCT. Amer. in part. 

 Wats, and Coult., Gray's Man. 6 ed. 548; Britt., Fl. N. J. 252; Upham, 

 Fl. Minn. 136: Coult., Fl. Colo. 360; Mac, Fl. Can., II. 60; Gov., Fl. Ark. 227. 



North America: N. S., N. Br., Q., Ont., Man., Saskatch- 

 ewan and Vancouver; S. to Colo , Minn., Mo., N. Eng., N. J. 

 and Fla. 



Minn, valley: Reported from the S. E. district, rare; 

 swamps, marshes and edges of lakes. 



Sparganium eurycarpum Engelm. Gray's Man. 2d ed. 



(1852). 



Wats, and Coult., Gray's Man. 6 ed. 548; Britt., Fl. N. J. 252; Webb., Fl. 

 Neb. 98; Mac, Fl. Can. II. 69 ; Wats., Fl. Calif. II. 188 ; Coult., Fl. Colo. 

 359; Chap., Fl. So. St. 443; Upham, Fl. Minn. 135: Wats., King Exp. 337; 

 Roth., Wheel. Exp. 269. 



North America: Newf., N. S., Ont., Man. to Humboldt 

 River, Nev.; S. to N. Eng., N. J., Va. ; W. to Minn., Neb. and 

 Kan. 



Minn, valley : Throughout; swamps, marshes and 

 edges of lakes. 



Herb. : Sheldon 253, Lake Washington, Le Sueur Co. ; 

 Taylor 1109, Glenwood; Taylor 522, Mud Lake ; Taylor 673, 

 Minnesota Lake; Sheldon 991, Cross Lake, Brown Co.; Sheldon 

 6JfJf, Waseca; Ballard 111, Shakopee; Sandberg 528, Red Wing; 

 Holzinger 263, Winona Co. 



III. POTAMOGETONACEAE. Pond-Weed 

 Family. 



Zosteraceae Lindl. Veg. King. 145 (1846) p. p. 



Najadaceae Benth. and Hook., Oen. PL III. 1009(1883); (Excl. 

 Tribus I, Juncagineae. Tribus II, Apogetoneae. Tribus VII, Najadeae); 

 Ascherson in Engl, and Prantl, Nat. Pflanz. 2, 1. 194 (1889). 



Genera: 9 living ; 3 extinct ; cosmopolitan ; aquatic, 

 principally in fresh water. 



Species: 75 ± living; 20-30 ? extinct. 



POTAMOGETON Linn. Gen. 92 (1737) 



Peltopsis Raf. Jour. Phys. LXXXIX, 101 (1819). 

 Spirillus and Groeiilanclica J. Gay, Comptes Rendus, Avr. (1854). 

 Benth. and Hook., Gen. PI. Ill, 1014; Durand, Ind. Gen. Phan. 453; 

 Engler and Prantl, Nat. Pfiai^z- 2. I, 207; Schenck, Palaeophyt., 381-383. 

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