WESTERN SPKOIES OF ARAGALLUS. 59 



Collected by Dr. J. W. Blankinship, on dry, rocky hillsides along 

 Middle Creek, 15 miles S. W. of Bozeman, Mont., June 4, 1898. 



**Pod turgid, included in but filling the distended (often split) calyx. 



Aragallus Lagopus (Nutt.) Greene, Pitt. Ill, 212 (1897). 

 Oxytropis Lagopus Nutt., Journ. Acad. Philad. VII, 17. Not at 

 all frequent but sometimes abundant on low ridges on the plains. 

 Seemingly confined to Wyoming and Montana. I think it should 

 be noted that the number of pairs of leaflets is often 5-7. Speci- 

 mens seen: R. S. Williams, No. 353, Great Falls, Mont., 1895; 

 Mrs. M. L. Alderson, Gallatin Co., Mont. ; Nos. 60 & 1294, 

 Laramie, Wyo., 1894 & 1895, by the writer. 



Aragallus nana (Nutt, ) Greene, 1. c. Oxytropis nana Nutt., 

 T. & G. Fl. N. A. I., 340 (1838). The range of this is said to 

 be the same as that of the preceding, but the actual specimens 

 ever cited are very few, and, so far as I know, either from north- 

 western Wyoming or southern Montana. My only specimens are 

 those of F. D. Kelsey, Deer Lodge, Mont., June 9, 1892. Though 

 these are probably all right, yet since the specimens are in blossom 

 only, one can not pronounce on them with certainty. 



*** Calyx not inflated, distinctly surpassed by the mature pod. 



+-Pod bladdery inflated; flowers few. 



Aragallus inflatus (Hook.). Oxytropis arctica infiata Hook., 

 Fl. Bor. Am. I, 146 (1833); 0. podocarpa Gray, Proc. Am. Acad. 

 I, 146 (1864); Spiesia infiata Britt. Mem. Torr. Club, V. 201 

 (1894); Britten & Brown, Flora, II, 307 (1897). Exceedingly 

 rare or, because of its sub-alpine or alpine habitat, not often dis- 

 tributed from the Rocky Mountains. 



Aragallus oreophilus (Gray). Oxytropis oreophila Gray, 

 Proc. Am. Acad. XX, 3 (1884). Whether any specimens of this 

 have been secured since those upon which the species was founded 

 were distributed, I can not say. It certainly remains a rare plant. 



4-+- Pod coriaceous, not inflated, flowers 1-3. 



Aragallus Parryi (Gray) Greene, 1. c. Oxytropis Parryi 

 Gray, 1. c. Like the two preceding this continues to be almost 

 unknown. The only specimen at hand is one of Hall & Harbour's, 

 No. 143. It is hoped that some one who has inclination for alpine 

 collecting will look this up and secure enough to give us all some 

 familiarity with it. 



