242 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



Montana: Beaver Head Co., on hills west of Clark's Canon, 

 1888, F. Tzi'cedy, g. 



Astragalus Drummondii Dougl. : Hook. Fl. Bor. Am. i : 153 [Man. 



R. M. 62; 111. Fl. 2: 299]. 



On prairies and hills, up to an altitude of 2000 m. 



Montana: Spanish Basin, 1895, Flodman, 626; June 24, 1897, 

 Rydberg & Bessey, 4476; Bozeman, 1887, Tweedy, 143; Beaver 

 Head Co., 1888, 200; Gallatin Co., Mrs. Alderson ; Great Falls, 

 1891, R. S. Williams, pp; Shields River, 1883, Scribner, 2jg; 

 Snowy Mts., 1882, Canbx. 



Yellowstone Park : 1888, Dr. Chas. H. Hall : Mammoth Hot 

 Springs, 1884, F. Tzceedy, yo: 1845, jj<5. 



Astragalus alpinus L. Sp. PI. 760 [Man. R. M. 63; 111. Fl. 2: 



304J • 



On more or less shad}' mountain sides, especially among rocks, at 

 an altitude of 2000-3000 m. 



Montana: Little Belt Pass, 1895, Flodman, 627: Bridger 

 Mountains, d^i" (?),• Park Co., 1889, Tzveedy ; Spanish Basin, June 

 30 and July i, 1897, Rydberg c^ Bessey, 447S and 447Q; Silver Bow 

 Co., Mrs. JeiDiic Moore; Beaver Head Co., 1887, Tweedy, ijp; 

 Belt Bark, 1886, R. S. IVilliams, 440; Bozeman, 1883, Scribner, 

 zyk. 



Yellowstone Park: 1888, Dr. Chas. H. Hall: 1884, F. 

 Tweedy, yj ; East De Lacy's Creek, Aug. 10, 1897, Rydberg (S: 

 Bessey, 4477; Hoodoo Peak, 1897, P. Koch, 16 and iS: 1883, 

 Miss Mary Conipton. 



Astragalus elegans (Hook.) Sheld. Bull. Geol. & Nat. Hist. Surv. 



Minn. 9: 154 [111. Fl. 2: 303]; Phaca elegans Hook. Fl. Bor. 



Am. I : 144; Astragalus oroboides Aniericanus Gray, Proc. Am. 



Acad. 6: 205 [Man. R. M. 6i,'\. 



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



Montana: Sheep Creek, iS()6, Flodnian, 6jj ; Spanish Basin, 

 June 28, 1897, Rydberg d- Bessey, 44S0: Indian Creek, July 21, 

 4481; Mill Creek, 1887, Tzueedy, 133. 



Yellowstone Park : Black Tail Deer Creek, 1884, Tzcccdy, 77. 



* Astragalus elegans curtiflorus ; Phaca farvifora Nutt. ; Torr. & 

 Gray, Fl. N. Am. i : 348 ; not A. parvijlortis Lam. 

 The flowers are smaller, ochroleucous tinged w^ith purple, and the 



pods are much smaller. On mountain sides. 



