MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 63 



narrow 3-5-nerved empty glumes. In dry soil up to an altitude of 

 2500 m. 



Montana: Townsend, iS(^^, Rvdberg, 2ijg; Shear, jj-o^: Man- 

 hattan, TPr^^^'^r^', ^777; Butte, 6'//£'rtr, 57(5; Lima, 57^; Jack Creek, 

 July 15, 1897, Rxdhcrg <£■ Bessey, j6pg: Little Belt Mts., 1896, 

 Flodman, 218; Rydberg, JJjJ ; Spanish Basin, J160 and J 164; 

 East Gallatin Swamps, 3182; Castle, 32 ji; Flathead Region, 



1883, H. B. Ayres, CCXLIX; Smith River, 1883, Scribner, 

 424. 



Yellowstone Park: Yellowstone Lake, Aug. 12, 1897, Ryd- 

 berg & Bessey, 3yoo and 3702; East DeLacy's Creek, Aug. 10, 

 36^4, 36^3 and 3701; Yellowstone Falls, Aug. 14, 1897, 36^7; 



1884, Tweedy, 230 and 231. 



Idaho: Henry's Lake, July 31, 1897, Rydberg d- Bessey, 3703. 



Agropyron violaceum (Hornem.) Vasey, Gram. U. S., Spec. R.ept. 



Dept. Agric. 63 : 45 [Man. R. M. 426; 111. Fl. i : 227] ; Trit/- 



cwn violaceum Hornem. Fl. Dan. /. 2044 [Bot. Cal. 2: 325]. 



On mountain sides at an altitude of 2000-3000 m. 



Montana: Bridger Mts., 1896, Flodman, 224; Castle, 1896, 

 Rydberg, 3234 and 3261; Lone Mountain, 1886, Tweedy, loii; 

 Jefferson City, 1883, Scribner, 421. 



Yellowstone Park: Electric Peak, Aug. 18, 1897, Rydberg d- 

 Bessey, 36^6. 



Idaho : Mt. Chauvet, July 27, 1897, Rydberg & Bessey, 3704. 



* Agropyron violaceum latiglume Scribn. & Smith, Bull. U. S. 



Dept. i\gric. Div. Agrost. 4: 30. 1897. 



Empty glumes with broad scarious margins ; flowering glume 

 rounded on the back, densely pubescent. 



Montana: Lone Mountain, Gallatin Co., 1886, R. Tzueedy, ion 

 (type in Nat. Herb.); Priests' Pass, 1883, Canby, 386. 



* Agropyron violaceum andinum Scribn. & Smith, Bull. U. S. Dept. 



Agric. Div. Agrost. 4: 30. 1897. 



Culm geniculate, densely tufted, weak ; spike compact i awns as 

 long as or longer than the flowering glumes. On the tops of the al- 

 pine peaks at an altitude of 2500-3000 m. 



Montana: Cedar Mountain, July 16, i8<^'j, Rydberg d: Bessey, 



3705- 



Yellowstone Park: Electric Peak, Aug. 18, 1897, Rydberg d 



Bessey, 36g8. 



