MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 67 



327] ; Elyinus clymoides Sweez}', Neb. Fl. PL 15 [111. Fl. i : 



232]. 



On the mountains to an altitude of 3000 m. 



Montana: Spanish Peaks, 1896, Flodman, 2^2; Helena, 1892, 

 Kelsey ; Bozeman, 1887, Tzvcedy ; Indian Creek, 1883, Scn'bncr, 

 4J7; Spanish Basin, 1896, Rydberg, jogi and j/jj; Sheep Creek, 

 32^8; Little Belt Mountains, 3381 ; Belt Mountains, 1883, Scn'bner^ 

 432 ; Billings, 1898, Williams d- Griffith. 



Yellowstone Park: Mammoth Hot Springs, 1885, Tzveedy, 

 626; Lower Ge3^ser Basin, August 4, 1897, Rydbcrg d- Bcssey^ 

 3714 and J7/5; Upper Falls, August 14, 3716. 



Idaho: Mt. Chauvet, July 29, 1897, Rydberg d Besscy, 3717. 



Elymus Canadensis L. Sp. PL 83 [Man. R. M. 427 ; 111. Fl. i : 



231 ; Bot. Cal. 2 : 327] . 



Along streams to an altitude of 1800 m. 



Montana: Logan, 1895, Rydberg, 2270; Shear, 303 : Gallatin, 

 Rydberg, 2284-2287; East Gallatin Swamps, 1896, Flodman, 234; 

 Rydberg, 3172; Little Belt Mts.,jjj/,- Smith River, 1883, Scrib- 

 iier, 434. 



* Elymus robustus S. & S., Bull. U. S. Dept. Agric. Div. Agrost. 



4: 37- 



Differs from E. Canadensis in the stouter habit, the larger spikes, 

 the numerous (3-5) spikelets at each node and the more flexuous or 

 bent awn. 



Montana: Helena, 1892, Kelsey. 



Elymus Macounii Vasey, Bull. Torr. Bot. Club, 13: 119. 1896 



[111. Fl. i: 231]. 



It is a slender grass resembling somewhat Agropvrum caninnm in 

 habit, and has mostly only one spikelet at each node. It occurs 

 in meadows along the rivers and ascends to an altitude of 2000 m. 



Montana: Townsend, 1895, Shear, 403 : Rydberg, 2168; Boze- 

 man, Shear, 430 and 466; Logan, 306 and 312; Red Rock, 330; 

 Smith River, 1883, Scribner, 43 g; Musselshell River, 1896, Ryd- 

 berg, 3437. 



Elymus glaucus Buckl. Proc. Acad. Phila. 1862 : 99 [111. Fl. i : 

 231] ; Elynms Ainericanus V. & S. ; Macoun, Cat. Can. PL 4: 

 245 ; Elyinus Sibirictis Americamis Wats. & Coult. in A. Gray, 

 Man. Ed. 6: 673. 1890. 



