192 MEMOIRS OF THE XEW YORK BOTANICAL GARDEN. 



Saxifraga flagellaris Willd. ; Sternb. Rev. Saxif. 25 [Man. R. M 



91 : Ton-. & Gray, Fl. X. Am. i : 564]. 



Among rocks, at an altitude of 3000 m. 



Montana: Old Hollowtop, Pony, July 9, 1897, Rydbcrg & 

 Bessey, 4283. 



Saxifraga caespitosa L. Sp. PI. 404 [Man. R. M. 91 ; 111. Fl. 2 : 



173]- 



In damp places among rocks on top of the highest mountains, at 



an altitude of 2800-3500 m. 



^Montana : Yogo, 1885, R. S. WiUiams, 755; Indian Creek, 

 July 22, 1897, Rydberg & Bessey, 42'jj: Old Hollowtop, Pony, 

 July 9, 42^4.; Upper Marias Pass, 1883, Canby, iij; Belt Moun- 

 tains, 1883, Scr/bner, jib. 



Yellowstone Park : 1885, T'ci'cedy, 841 . 



Saxifraga bronchialis L. Sp. PI. 400 []Man. R. M. 91]. 



Among rocks on mountains and hills, at an altitude of 2000 m. and 

 more. 



Montana: 1892, Mrs. L. A. Fitch; Spanish Basin and Peaks, 

 1896, Flodman, ji8 and jig: Mill Creek, 1887, Tivecdx, 2jy; 

 Gallatin Co., JBs. Aldcrson; Lake Plateau, 1897,7-*. Kocli,^^; 

 Cedar Mt., July 16, 1897, Rydberg & Bessey, 42 jg; Spanish Basin, 

 June 28, 4280; Pony, July 7, 4281 ; July 9, 4282 ; Jocko River, 1883, 

 Caiiby, 112; Jocko Lake, 1880, Watson. 



Yellowstone Park: Slough Creek, 1885, Tweedy, 842. 



Idaho: Mt. Chauvet, July 27, 1897, Rydbcrg & Bcsscy, 4278. 



Saxifraga cernua L. Sp. PL 403 [Man. R. M. 91 : 111. Fl. 2: 172]. 



In shaded places under rocks. 



Montana: Yogo, 1888, R. S. Williams, yji ; Rocky Mts., 1861, 

 Lyall. 



Saxifraga rivularis L. Sp. PI. 404 [Man. R. M. 91]. 



Summits of the highest mountains, in wet places, at an altitude of 

 about 3000 m. 



Yellowstone Park : 1885, Tzi'ccdx, 840. 



Saxifraga adscendens L. Sp. PI. 405 [Man. R. M. 91]. 

 High mountains, at an altitude of about 3000 m. 

 Montana : Mt. Blackmore, 1886, Tweedy, iijy. 



