2IO MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



Montana: Howard; Bozeman Pass, 1883; Scribuer, ^jc. 



Potentilla dissecta Pursh, Fl. Am. Sept. 355 [Torr. & Gray, Fl. X. 



Am. I : 446 ; Man. R. M. 85 ; Bot. Cal. i : 179 ; R3db. Mon. 59]. 



In rocky places, at an altitude of 2000-3000 m. 



Montana: Spanish Peaks, 1896, Flodman, jyj ; Ponv Mts., 

 July 7, 1897, Rydberg & Bessey, 4386 ; Spanish Basin, June 26, 

 438y; Hell Roaring Creek, Park Co., 1887, Tzueedw ij. 



Yellowstone Park : i^iSt^, Miss Maiy Compton : 1884, Tzueedy, 

 98; 1885, 463. 



Potentilla dissecta glaucophylla (Lehm.) Wats. Proc. Am. Acad. 

 8: 556 [Man. R. M. 85: Rydb. Mon. 61]; Potentilla glauco- 

 phylla Lehm. Del. Sem. Hort. Hamb. 1836: 7. 

 On hillsides and in ravines, sometimes in the open valleys, at an 



altitude of 1500-2500 m. Occasionally it is even 5 dm. in height. 

 Montana: Spanish Basin, 1896, Flodman, j'/4; Bridger Mts., 



575 f-^)-: Little Belt Mts., 3/6 and 3/8; Elk Mts., 3yy; Spanish 



Basin, Jul}- i, 1897, Rydberg- & Bessey, 4389: Belt iNIts., 1883, 



Scribner, 44. 



Yellowstone Park : 1884, Tzveedy, g6. 



Potentilla decurrens (Wats.) Rydberg, Bull. Torr. Bot. Club, 23: 



396 [Rvdb. Mon. 61] ; Potentilla dissecta decurrens Wats. Proc. 

 Am. Acad. 8: 557 [Man. R. M. 85]. 



It is more decidedly an alpine species than the preceding, grow- 

 ing among rocks, at an altitude of 2500-3000 m. 



Montana : Little Belt Mts., 1896, Flodnian, 57/ ; Spanish Peaks, 

 572; Bridger Mts., June 11 and 15, 1897, Rydberg & Bessey, 4388 

 and 4393; Pony, July 7, 43^2: Indian Creek, July 22, 4391. 



Idaho: Mt. Chauvet, July 29, 1897, Rydberg & Bessey, 43go. 



Potentilla multisecta (Wats.) Rydberg, Bull. Torr. Bot. Club, 23: 



397 [Rydb. Mon. 62] ; Potentilla dissecta multisecta Wats. King's 

 Exp. 5: 86 [Man. R. M. 85]. 



A rare plant growing on the highest mountains, at an altitude of 

 about 3000 m. 



Montana: 1885, F. W. Anderson, 123; Lima, 1895, Rydberg, 

 26gi ; Old Hollowtop, Pony, July 7, 1897, Rydberg & Bessey, 4394. 

 Potentilla fastigiata Nutt. ; Torr. & Gray, Fl. N. Am. i : 440 



[Rvdb. Mon. 6^'] ; Pote/itilla gracilis yhstigiata Wats. Troc. Am. 



Acad. 8: 557 [Man. R. M. 85; Bot. Cal. i: 179]. 



