68 INIEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



Characterized by its long, straight awn, narrow spike and glabrous 

 spikelets. It is distinguished from the next by its broader leaves, 

 larger spikelets and awn not divergent. 



Montana: Baldy, Bridger Mountains, 1895, Rydbcrg, 222^ ; 

 Spanish Peaks, 1896, Flodman^ 24^; Little Belt Mts., Rydberg, 

 33S4 andjjj/; Flodman^ ~jj' Jack Creek, July 14, 1897, Ryd- 

 berg & Bcsscy, 3722; Forks of the Madison, July 26, 3721; 

 Meadow Creek, 1886, Tweedy, 1012: Belt Mountains, 1883, Scrib- 

 ner, ^^o ; Horned Creek, ^36; Little Belt Bass', 1896, Flodman, 

 2^8; Rvdberg, 33^3 ; Bridger Mts., Rlodman, 24.6; Rydberg, 

 3208; Elk Mountains, ji'7(5; Spanish Basin, jOcS'c?. 



Yellowstone Park: East DeLacy's Creek, Aug. 10, 1897, 

 R ydberg & Besscy, 37oy. 



* Elymus inovatus Beal, Grasses of N. A. 2 : 650. 



This is characterized by its pubescent spikelets, its small empty 

 glumes, which are mere bristles, short ligules and scabrous leaves. 

 It is a near relative to R. mollis and R. Bro-oiii. The latter is 

 found in the Black Hills of South Dakota and may be found in 

 Montana ; it is characterized by its short spike, broader empty 

 glumes and more slender habit. 



Montana: Sims River, 1887, R. S. WiUianis, ace. to Beal. 



* Elymus Virginicus minor Vasey ; Rydb. Cont. U. S. Nat. Herb. 



3: 193- 



Differs from R. l^irguiiciis in being more slender, with a long-ex- 



serted, erect and slender spike. In alluvial soil to an altitude of 



1500 m. 



Montana: Sand Coulee, 1883, Scribnc?-, 4.38. 



Elymus condensatus Presl, Reliq. Haenk. i: 265. 1830 [Man. R. 



M. 427 ; 111. Fl. I : 232 ; Bot. Cal. 2 : 326]. 



In dry soil, along roads, on hillsides, etc., to an altitude of 2000 m. 



Montana: Helena, 1895, Rvdberg, 2136; Shear, 381; Town- 

 send, 3gi ; Bozeman, 471; Spanish Basin, 1896, Rlodman, 230; 

 Rydberg, 3 131; Helena, 1892, Kelsey ; Yogo Gulch, 1896, Rvd- 

 berg, 3406 ; Gallatin City, 1883, Scribner, 433. 



* Elymus triticoides (Nutt.) Buckl. Proc. Acad. Sc. Phila. 1862: 



99; Rlynms condensatus tritieoidcs Thurber, Bot. Cal. 2: 326. 



E. Virginicus submuticus Hook. Fl. Bor. Am. 2 : 255( ?). 



It is smaller than the preceding ; the spikelets are smaller, gen- 



