MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



195 



In rocky places on alpine peaks, at an altitude of about 3000 m. 

 Yellowstone Park: Electric Peak, Aug. 18, 1897, Rxdbcrg & 

 Bessey, ^268. 



* Saxifraga Montanensis Small, Bull. Torr. Bot. Club, 23: 367. 



Nearest related to S. Pennsylvanica, from which it differs some- 

 what in habit, the turbinate calyx-tube and the triangular-ovate sepals 

 which about equal the tube. It grows in mountain meadows, up to 

 an altitude of 2500 m. 



Montana: Mullan, 1890, and Helena, Priest's Pass, 1892, F. D. 

 Kelsey; 1888, F. Tzueedy,sS; Yogo, 1888, 7?. 6". Willmms, 4^1 ; 

 Spanish Basin, July i, 1897, Rydberg & Bessey, 4264; June 28, 

 4262 ; June 30, 426 j. 



Yellowstone Park : 18S4, Tweedy, 24J ; i9>S^, 8j8 ; Yellow- 

 stone Falls, Aug. 14, iS^"] , Rydbe7'g d- Bessey, 4261 ; iS"]!, Hayden. 



* Saxifraga ranunculifolia Hook. Fl. Bor. Am. i : 246. 



A peculiar species, very unlike any other in habit, with long- 

 petioled 3-divided leaves with broadly cuneate cleft segments. It 

 grows only in the western part of the State. 



Montana: Jocko River, 1883, Canby, 114. 



*Therophon heucheriforme Rydb. Bull. Torr. Bot. Club, 24 : 247; 



Saxifraga Jainesii Hook. Fl. Bor. Am. i : 47 : not Torr. 



It is distinguished from T. yamesii (^Saxifraga jainesii Torr.) 

 by the small bluish violet petals, which scarcely exceed the sepals, 

 and the free styles. It grows among rocks on the higher mountains, 

 at an altitude of 2500-3500 m. 



Montana: East Boulder, 1887, 7^. Tzveedy, 2^^ ; Bozeman, 1895, 

 Rydberg, 26"/"/; Bridger Mts., 1896, Flodman, J14; Gallatin Peak, 

 1886, Tzveedy, iijj; Deer Lodge Co., Miss Emma Ware; Belt 

 River Canon, 1886, F. W. Anderson, ijj ; Sixteen Mile Creek, 

 1883, Scribner, §1 ; Tiger Butte, 1883, Scribner ; Belt River Canon, 

 1885, ^- S. Williams. 



Yellowstone Park: Three River Peak, 1885, W. H. Weed; 

 Electric Peak, Aug. 18, 1897, Rydberg d' Bessey, 4260; Hot Sul- 

 phur Springs, 187 1, Hay den. 



Therophon majus (Gray) Wheelock, Bull. Torr. Bot. Club, 23: 70; 

 Boykinia major Gray, Bot. Cal. i : 196 [Man. R. M. 93] ; B. 

 occidentalis elata Gray, Proc. Am. Acad. 8: 383; not B. elata 

 Nutt. 



