MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 309 



-Gentiana heterosepala Engelm. Trans. Acad. St. Louis, 2: 215 



[Syn. Fl. 2': 118; Man. R. M. 244]. 



In mountain meadows, at an altitude of 2000-2500 m. 



Montana: Lima, 1895, Rydberg, zjji ; Head of Stillwater, 1897, 

 P. Koch, yo. 



Yellowstone Park; Lone Star Geyser, Aug. 7, 1897, Rydbei-g 

 <S: Bcssey, 46gj ; East De Lacy's Creek, Aug. 10, 46^2 ; Upper Falls, 

 Aug. 4, 46gi. 



Gentiana acuta Michx. Fl. Bor. Am. i: 177 [111. Fl. 2: 614]; 



Gcntiana Aniarella acuta Herder, Act. Hort. Petrop. i : 428 [Syn. 



Fl. 2': 118; Man. R. M. 244; Bot. Cal. i: 481]. 



Hillsides and valleys, at an altitude of 1500-2500 m. 



Montana: Lima, 1895, Rydbcrg^ 2-jj2; Sheep Creek, 1896, 

 Flodman, J2j ; Little Belt Mts., 724; East Boulder, 1887, F. 

 Tweedy, 8j ; Belt Creek, 1886. R. S. Williams , ^ 1 6 ; Silver Bow 

 Co., Mrs. Ida B. Christie. 



Yellowstone Park : Mammoth Hot Springs, 1894, R. H. Biir- 

 ^lehaiis ; 1884, R. Tweedy, 210. 



Gentiana acuta strictiflora ; Gentiana acuta stricta Griseb. ; Hook. 



Fl. Bor. Am. 2: 63, 1834; not G. stricta Willd. 1820. G. 



Aniarella stricta Wats. King's Rep. 5: 278 [Syn. Fl. 2^: 118; 



Man. R. M. 244] ; G. arctophila densijlora Torr. Frem. Rep. 



94, 1845 ; not Griseb., 1834. 



Montana: Lima, 1895, Rydberg, 2y^j; Little Belt Mts., 1896, 

 Flodman, y2§: Martindale, 1882, Tweedy. 



Yellowstone Park : 1884, F. Tzvcedy, 208. 



Gentiana frigida Haenke, Jacq. Coll. 2:13 [Syn. Fl. 2^ : 120 ; Man. 



R. M. 245]. 



Mountain tops, at an altitude of 3000 m. 



Montana: Gallatin Peak, 1886, F. Tweedy, Tigy; Mill Creek, 

 1887, S4. 

 * Gentiana calycosa monticola Rydb. Bull. Torr. Bot. Club, 24: 



252; Gentiana calycosa stricta Griseb. Gen. & Spec. Gent. 292 



[Syn. Fl. 2' : 121] ; not Willd., nor Klotsch. 



Lower than the typical G. calycosa, 5-10 cm. high, and the leaves 

 small, short and broad. High mountain tops, at an altitude of 2500- 

 3500 m. 



Montana: Yogo Baldy, Little Belt Mts., 1896, Flodman, 726; 

 Belt Canon, 1S85, R. S. Williams, 652; McDonald's Peak and 

 Upper Marias Pass, 1883, Canby, 228. 



