70 :memoirs of the new york botanical garden. 



The characters of the fruit are taken from Tweedy's specimens, as 

 my own are too young. 



Yellowstone Park : East Fork of Firehole River, 1884, Tzueedy, 

 222; Lower Geyser Basin, Aug. 4, 1897, Rydhc7-g & Bcsscv, jSi2. 



Montana: Mud Springs, 1881, T. C. T^or/^-r (Hayden Survey). 



Eleocharis acicularis (L.) R. Br. Prod. 224 [Man. R. M. 369; 



111. Fl. i: 252; Bot. Cal. 2: 221] : Scii'pus acicularis L. Sp. 



PL 48. 



In sandy wet soil up to an altitude of 2500 m. 



Montana: Manhattan, 1895, Rydberg^ 2206; Little Rocky 

 Mountains, 1889, Dr. V. havard; Great Falls, 1886, R. S. Wil- 

 liams, ^00 ; Teton River, 1883, Scribncr, J02. 



Yellowstone Park: Turbid Lake, 1885, Tzvccdv, 66^. 



* Eleocharis rostellata Torr. Fl. X. Y. 2 : 347 [111. Fl. i : 256 ; Bot. 



Cal. 2 : 222]. 



In water at an altitude of 1500 m. 



Montana : East Gallatin Swamps, 1896, Rvdbcrg, 3176. 



Scirpus pauciflorus Lightf. Fl. Scot. 1078 [111. Fl. i : 262] ; Eleo- 

 charis paticijlorits Link, Hort. Berol. i : 284 [Man. R. M. 369 ; 

 Bot. Cal. 2 : 221]. 



In sandy, wet places up to an altitude of 2500 m. 

 Montana: Sun River Caiion, 1887, R. S. Williams, 727. 

 Idaho: Henry's Lake, July 31, 1897, Rydberg & Besscy, j8ii . 



Scirpus Americanus Pers. Syn. i: 68 [111. Fl. i: 265]; Scirpus 



j>u))gc)isYdh\. Enum. 2: 255 [Man. R. M. 266; Bot. Cal. 2: 



218]. 



In sloughs, especially in saline soil up to an altitude of 1500 m. 



Montana: Townsend, 1895, Rydberg, 21 jj; Great Falls, 1886, 

 R. S. Williams, ^01 ; Teton River, 1883, Scribner, joj. 



Scirpus lacustris L. Sp. PI. 48 [Man. R. M. 367 ; 111. Fl. i : 266; 



Bot. Cal. 2 : 217] ; Scirpus validus Vahl, Enum. 2 : 268. 



In water up to an altitude of 1500 m. 



Montana: Madison River, 1895, Rydberg, 227 j; Tozvnsend, 

 21^8; Shear, sgj ; Logan, July 2^,321; East Gallatin Swamps, 

 1896, Flodman, 2jg; Rydberg, 3168; Great Falls, 1886, R. S. 

 Williams, 302. 



Scirpus lacustris occidentalis Wats. Bot. Cal. 2 : 218 [Man. R. M. 



367]- 



