186 Nelso7i — Genus Hedysariim in JRochy Mountains. 



the standard shorter than the narrow keel; the wings linear, with a nar- 

 row basal lobe equaling the claw; legume glabrale, mostly three jointed; 

 the joints oval to orbicular, 6-8 mm. long, lightly reticulate from a some- 

 what larger marginal nerve. 



Only two collections of this species are at hand, both of them from rich 

 moist copses on stream banks in the Laramie Mountains of Albany Co., 

 Wyoming. Nos. 2034, Crow Creek, 1890; 3367, Willow Creek, 1897. 



Hedysarum sulphurescens Rydb. 



Jledysarum si/l2)7iurescens Rydh. Bull. Torrey Club 24:253: II. flnves- 

 cens Coult. & Fish. Bot. Gaz. 18:300; not Kegel &Schm. 



This fine species is of frequent occurence in northwestern Wyoming, 

 and through Montana. 



Hedysarum uintahense n. sp. 



Green and apparently glabrous throughout, but under a lens sparseh' 

 and minutely pubescent: stems stoutish, noticeably striate, mostly erect, 

 the short lower nodes sheathed by the large brown connate stipules; 

 leaves nearly sessile, large, 10-15 cm. long; leaflets 11-23, variable in 

 shape (oval, ovate or even nearly lanceolate), mostly obtuse, 1-3 cm, 

 long; stipules large, semiconnate, brownish, membranous; racemes axil- 

 lary, in the uppermost approximated nodes appearing clustered, corym- 

 bose, or even umbellate, surpassing the leaves; the purple or lavender flow- 

 ers strongly refiexed from the earliest anthesis; calyx-tube nearly glabrous, 

 campanulate, with oblique margin and short unequal teeth (tube 4 mm. 

 long and teeth usually much less than half as long); corolla large, 15 

 mm. or more long: the keel surpassing thesubequal standard and wings; 

 the wings broadly linear, with a slender claw and a free lobe as long as 

 the claw: loment stipitate, its 2-5 large joints often with a canescent 

 connective; the jointsobscurely puberulent, lightly reticulated, narrowly 

 margined, oval to obovate or oblong, 10-15 mm. long. 



I cite as type my No. 7198 from the moist draws in the Uinta foot-hills, 

 Evanston, Wyo. This species has been variously treated heretofore but 

 most specimens are probably labelled 11. h<>re<tle. The following I think 

 belong here. Wyoming: My Nos. 877 and 3839; B. C. liull'iiin's from 

 South Fork, Crazy Woman Creek, 1892; 977, Merrill and Wilcox, Teton 

 Pass, 1901. Washington: 1850, L. H. Henderson, Olympic Mountains. 

 Colorado: 464, Baker, Earle and Tracy, near La Plata. The last two 

 are given with some reserve. 



