167 



122 Astragalus terminalis \V;itson Proc. Am. Acad. 17 370 (1882). 

 Pods erect nnd appresscd. about 4 mm. wide and 3 mm. high, some- 

 what Aiched, broadl\' sulcate and with septum partly intruded; tip de- 

 clined a little but nearly in line with the ventral suture, about deltoid, 

 flattened, ending abruptly in a subulate long mucro. Flowers purple 

 and about 1.2 to 1.5 cm. long, nearly sessile but rather slender-pedi- 

 celed in fruit. Banner oblong, arched to erect beyond calyx tips, with 

 with sides reflexed 1 mm. wide in the middle, and about 7-8 mm. long. 

 Wings oblong, 2-3 mm. longer tlian keel. Keel arched a little, sho:t, 

 purple, sharply rounded to a little more than erect, tJie erect part about 

 as long as base and 3 mm. high. Calyx about 3 mm. long, the nigres- 

 cent teeth very short and wide. B'ruiting pedicels 3-4 mm. long. The 

 bracts ovate to subulate, hyaline, 1-2 mm. long. Pedunclles subter- 

 minal and about as long as stems, strict, 1-2 dm. long, the floral rachis 

 half as long. Leaves 5-15 cm. long, but root leaves shorter, with ob- 

 ovate folded leaflets, and petiole nearly half ihe whole. Upper leaves 

 with shorter petiole, the leaflets linear-oblong to oblong-ovate and 

 7-12 mm. long. Leaflets 5-10 pairs, obtuse to retuse. distant, short- 

 petiolulate, ashy below, rather thick. .Stipules small, triangular and 

 wide, about 4 mm. long. Stems tufted, spreading, rather zigzag, a 

 foot long or less, slender, with the two upper internodes 2-5 cm. long, 

 the rest short, from a woody root. Headwaters of the Snake river in 

 the vicinity of St. Anthony and Spencer Idaho to Yellowstone Park 

 and over on the headwaters of the Gallatin river on sagebrush plains. 

 It has the general appearance of the broad-leaved form of A. arrectus 

 but the pod is strictly sessile and thicker walled, while the peculiar 

 pubescence puts it in this group. Middle Temperate life zone. 



Astragalus terminalis var. reventoides (Jones Cont. 7 661 1895 as 

 sqecies). Flowers ochroleucous. Pods about 12 mm. long, almost 

 truncate at both ends, about 6 mm. wide and 4 mm. .high, with parti- 

 tion intruded one third the way across. Leaflets oval to elliptical and 

 hoary, inclined to be notched, otherwise as in the type. On the head- 

 waters of the Gallatin river Montana on sagebrush plains. Lima and 

 Grasshopper Creek. A poor variety. 



123 Astragalus Oreganus Xutt. in T. & G. Fl. 1335 (1838) A. 

 ventorum Gray. Pods horizontal, lanceolate-oblong, with triangular 

 beak which is decidedly declined and flattish. Flowers ochroleucous. 

 Planner ovate, a little longer than vvings. Wings 2 mm. longer than 

 1 eel, and 2 mm. wide. Keel straight and with tip rounded and erect. 

 Caly.x inserted on the lower corner, a little wider below: tube about 5 

 mm. long; teeth subulate and about 2 mm. long. Pedicels very short, 

 bracts longer than pedicels. Peduncles shorter than the leaves, sub- 

 term.'nal. about 7 cm. long. Leaves 7-12 cm. long, of 6-8 pairs of oval 

 to obcordate leaflets which are thick, hoary on both sides and less than 

 2.5 cm. long. Stipules large. Stem hardly half a foot long, simple, 

 e ect, zigzag slender and from slender underground rootstocks, with 

 few internodes which are rarely 2.5 cm. long. Pubescence ashy and ra- 

 ther long. In the upper Snake river valley Idaho and Wind river re- 

 gion Wyoming on sagebrush plains. These two species are but little 

 known and may not be distinct. 



Astragalus Canadensis Tourn in L. 757. (I take up this name in 

 preference to Carolinianus which has only priority by position, and 

 shonUl not displace Tournefort's name on a technicality, in addition 

 the latter is only a local variation of the other widespread species). 

 Pods oblong, about 1.5 cm. long, little inflated, about 5 mm. wide and 

 high, a little obcompressed, rarely noticeably sulcate, densely ap- 

 presscd-spicate, smooth, with short mucro. Flowers yellowish- or 

 greenish-white, very many, densely spicate, nearly sessile. Banner 

 rather fleshy, arched far back, seemingly triangular because of the 

 sides refle.xed most at tip, nearly round, 5-8 mm. long. The groove 

 V-shaped except at base. Wings' linear, slightly wider at the blunt 

 tip. ascending, about 2 mm. wide and 2 mm. longer than keel. Keel 



