186 Nelson Genus Hedysarum in Rocky Mountains. 



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

 row basal lobe equaling the claw; legume glabrate, 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, 1896; 3367, Willow Creek, 1897. 



Hedysarum sulphurescens Rydb. 



Hedysarum mlpJinrescens Rydb. Bull. Torrey Club 24:253: //. flaves- 

 cms Coult. & Fish. Bot. Gaz. 18:300; not Regel & Schm. 



This fine species is of frequent occurence in northwestern Wyoming, 

 arid through Montana. 



Hedysarum uintahense n. sp. 



Green and apparently glabrous throughout, but under a lens sparsely 

 and minutely pubescent: stems stout ish, 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 reflexed 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 j oints obscurely 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 H. boreale. The following I think 

 belong here. Wyoming: My Nos. 877 and 3839; B. C. Buff urn'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. 



