262 MEMOIRS OF THE XEW YORK BOTANICAL GARDEN. 



* Viola vallicola A. Nelson, Bull. Torr. Bot. Club, 26: 128. 



Resembles somewhat V. Nuttallii, but the leaves are shorter and 

 more glabrate, the flowers somewhat larger and brighter 3'ellow, and 

 the pods globular and pubescent. It is a mountain plant, growing at 

 an altitude of 2000-3000 m. 



Montana: Bridger Mts., June 10-12, 1897, Rydherg- d- Bcssey, 

 4^41 and ^5^7; Bozeman, 1892, W. T. Shaw; Madison Co., Mrs. 

 McNidty ; Bozeman Pass, 1883, Scribner, gb. 



* Viola flavovirens Pollard, Bull. Torr. Bot. Club, 24: 405. 



A larger plant than either of the two preceding, with large 

 light green leaves, large light yellow flowers and longer and softer 

 pubescence. In rich soil, under rocks on the mountain sides, at an 

 altitude of 2500-3000 m. 



Montana: Bridger Mts., June 12 and 18, 1897, Rydbcrg & 

 Bcsscy, 4j48 and 454^; Old Hollowtop, Pony Mts., July 7, 1897, 

 Rydbcrg & Bcssey, 4340; Grizzly Creek, 1887, Tzveedy, 24^; 

 Belt Mts., 1888, R. S. Williams, 116, in part. 



Yellowstone Park: Mammoth Hot Springs, 1889, F. JV. 

 Dezvart. 



Viola venosa (Wats.); Viola .A7///^///// z'^;/05rt' Wats. King's Exp. 



5: 35, 1871 ; [". anrca venosa Brew. & Wats. Bot. Cal. i: 56 



[Man. R. ]M. 29; Bot. Cal. i : 56] ; V. fracmorsa venosa Gray, 



Syn. Fl. i' : 200: V. pirpirea Kellogg, Proc. Cal. Acad. Sc. 



i: 55. 1873. 



On high mountains, at an altitude of 2500-3000 m. 



Montana: Park Co., Grizzly Creek, 1887, Tzuccdy, 2jo. 



Yellowstone Park: Mammoth Hot Springs, 1889, R. IV. 

 DezL'art. 



Viola Canadensis L. Sp. PI. 936 [Man. R. M. 29; Syn. Fl. i' : 



202; 111. Fl. 2: 453]. 



Common in woods, up to an altitude of 2500 m. 



Montana: Bozeman, \'^(^>,. Rydbcrg, 2/26: 1896, Rlodnian. djy ; 

 Jack Creek, July 15, 1897, Rydberg & Bcssey, 4333; Bridger Mts., 

 June 14, 4334 and 4333 ; Gallatin Co., 1897, Tweedy, 233 ; Bozeman, 

 1882, Tzueedy ; Helena, F. D. Kclsey ; Bozeman, 1892, F. W. 

 Shazv ; Mrs. Alderson; Jefferson City, 1883, Scribncr, pc ; Hell 

 Gate, 1880, Watson. 



Yellowstone Park: Soda Butte Creek, 1885, Tzcccdy, 433. 



