MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 25 1 



* Aragallus spicatus (Hook.) ; Oxytropis campcstris sficata Hook. 



Fl. Bor. Am. i : 147 [Torr. & Gray, Fl. N. Am. i : 341] ; Oxy- 

 tropis Lamhertii ochroIcHca A. Nelson, First Rep. Fl. Wyo. 98; 

 Aragallus albijlorzis Nelson, Erythea, 7: 62. 



Differs from A. Lambcrtii \n the broader leaflets, the long spike 

 and yellow flower. Nelson's co-type specimens match so closely 

 those of Hooker's variety, preserved in the Torrey Herbarium, that 

 it is impossible to keep A. spicatus and A. albi-florus apart. Prof. 

 Nelson cites two of the following specimens. On hills and plains, 

 up to an altitude of 2500 m. 



Montana : Ft. Benton, John Pear sail, g2§ (Lt. Mullan's Exped.) ; 



Little Belt Mts., 1896, Flodman, 644; Old Hollowtop, Pony Mts., 



July 7, 1897, Rydberg & Besscy, 4305; Cedar Mountain, July 16, 



4.304'^ Gallatin Co., Mrs. Alderson; Great Falls, 1886, R. S. 



Williams, g8. 



Yellowstone Park: Swan Lake, 1885, Tzveedy, ^48. 



Aragallus monticola (Gray) Greene, Pittonia, 3 : 212 ; Oxytropis mon- 

 ticola Gray, Proc. Am. Acad. 20: 6 [Man. R. M. 71]. 

 On hills and mountains, at an altitude of 1500-2000 m. 

 Montana: Little Belt Mts., iS()6, Rlodnian, 64"/; Cottonwood 



Creek, 646 (?) ; 1882, Tzvccdy, /pd; Jocko River, 1883, Canby, gi ; 



Upper Marias Pass, 18S3, Canby, g2 ; Kishiner River, 1861, Lyall. 



* Aragallus gracilis A. Nelson, Erythea, 7: 60. 



This species is common in the Black Hills of South Dakota and 

 Eastern Wyoming, and is also found in Manitoba and Assiniboia. 

 Prof. Nelson refers the following specimen to it. I have seen none 

 from Montana. A. gracilis is nearest related to A. monticola but 

 is taller, looser-flowered, and has semi-membranous pods, which are 

 more appressed to the rachis and more distinctly 2-celled. In size 

 the plant is intermediate betw'een A. spicatus and A. monticola, but 

 rather more slender than either. 



Montana: Mystic Lake, 1898, Blanhinship. 



* Aragallus dispar A. Nelson, Erythea, 7: 61. 



A species characterized by the short calyx-lobes and the diverse 

 leaves, the leaflets of the lower ones being almost orbicular and those 

 of the upper oblong to linear. 



Montana: Custer, 1890, i?/«;7i^///5//;^ (according to Nelson). 



