184 Nelson — Gemis Iledysannn In Iioc/:t/ Mountains. 



fact the descriptions do not tall.y very closely and Nuttall merely 

 suggests the possibility. The two habitats are so wholly different as to 

 suggest in themselves the distinctness of the plants. 



Hedysarum boreale Nutt. 



Iledysarmn boreale Nutt. Gen. 2:110; and of many later authors in 

 part. See citations and the note on the preceding. 



When the proper locality shall have been visited, Nuttall's subvillous 

 species with its obovate leaflets and round articulation in the loment 

 will probably be found again. 



Hedysarum cinerascens Rydb. 



Hedysarum, cineraficens Rydb. Mem. N. Y. Bot. Gard. 1:257. II. can- 

 eseens Nutt. T. & G. Fl. N. Am. l:3r)8. 



This species is not of frequent occurrence, but is occasionally found in 

 typical form from central Wyoming, northward and westward. The 

 cinereous pubescence throughout, the small stipules and the short corolla- 

 wings are distinctive. 



Hedysarum lanclfolium Rydb. 



Iledysarmn laneifoliiim Rydb. Mem. N. Y. Bot. Gard. 1:256. 



No specimen of this is at hand, but judging by the description it is 

 an excellent species. Known only from the original locality, "Head 

 water of Jocko River, Mont., 1883, Canby, 93." 



Hedysarum mar§:inatum Greene. 



Iledysarnm mnrcjinidum Greene, Pitt. 138. 1900. 



Of this species the description is not just now at hand but judging b}' 

 a specimen of the type number (Pagosa Springs, Colo., Baker, 1899) it 

 IS strongly marked. Presumably that is still the only collection of it. 



Hedysarum Mackenzii Rich. 



Iledysarnm Mackenzii Rich. Frankl. Jour. 745. 



It is usual to call the commonest form of Hedysarum in the Rocky 

 Mountains by this name in spite of the fact that it does not at all closely 



