Nelso7i — Gemis Ileilysarum in Hodcy Mountains. 185 



accord with the original description. It seems highly probable that no 

 true H. Mackenzii occurs within the United States, at least no specimens 

 have come under my observation with leaves that are "canescently 

 hairy on both sides," or •■uiriiique caaescenti-pilosis, " and with the 

 joints of the legume "rugose and pilose." The original specimens 

 from "Barren grounds, north of Lai. U4, as far as the shores of the Arc- 

 tic Sea" must have been very different. The Rocky Mountain plant may 

 be named as follow.s: 



Hedysarum pabulare n. sp. 



Stems several from the crown of a woody root, decumbent at base 

 and moderately slender, 4-7 dm. long, subcinereous and obscurely striate: 

 leaves petioled, o-lO cm. long: leaflets 0-1.5. from nnrrowly to broadly 

 oblong or rarely on some of tlie lower leaves obovate anJ emarginate, 

 1-2 cm. long, subcinereous with a minute pubescence below, green, glab- 

 rate and minutely puncticulose above; stipules rather small, more or 

 less united, with linear acumiiialious as long as the body; racemes long, 

 on axillary peduncles surpassing the leaves, its flowers tardily or not at 

 all reHe.xed; caly.\-tube short (about 2 mm.), its teeth linear-acuminate 

 and .'!-4 mai. long; corolla lilac or light purple; its standard 12-13 inm. 

 long, broadly obovate, emarginate; the keel obovate-cuneate, equaling 

 the standard and about one-fourth longer than the narrowly oblong 

 wings: joints of the loment. ?>-ii, suborbicular. 5-7 mm. broad, usually 

 closely united or conlluent. more rarely with a narrow canescent con- 

 nective, the transverse nerves (scarcely reticulate) ending in a thickened 

 margin, light green and appearing glabrous, but sparsely puberulent 

 under a lens. 



This species is reputed an excellent forage plant. As previously stated 

 it has often figured as H. Mackenzii. The following collections seem to 

 me to be representative of it. Wyoming: 752, Wind River. 1804; 10S7, 

 Snake River, 1»04: 201, Bates Creek, 1001, by L. N. Goodding. Colorado: 

 Durango. 1808, by C. S. Crandall; 83, Mancos, 1808, by Baker, Earle and 

 Tracv. Utah: 5502. .Soldier Summit. 1804. bv M. E. Jones. 



Hedysarum philoscia n. sp. 



Bright green and nearly glabrous throughout; stems slender, 4-7 dm. 

 high, few to several from a freely branched semi-tieshy root; leaves 

 crowded, short petioled, with lanceolate membranous semiconnate stip- 

 ules: leaflets 15-23, mostly oblong (15-30 mm. longand7-12 mm. broad), 

 obtuse with a minute mucro. some minute straggling hairs below, especial- 

 ly on the midrib: peduncles axillary, slender, overtopping the leaves; 

 raceme slender, puberulent, acuminate; flowers white, sharply reflexed in 

 bud, rising. somewhat inanthesis; bracts filiform; calyx-tube campanulate, 

 with triangular-lanceolate teeth shorter than the tube; corolla narrow, 



