164 Reventi-Arrecti. 



spreading, leaflets thin and inclined to be notched at the end. bright- 

 green and apparently smooth, under a lens the young parts are sparse- 

 ly ciliate or appressed-hairy. Internodes very many, with the uppt^r 

 ones often as short as the leaflets, and so the leaves are congested a- 

 bove. Whole plant nearly smooth except the nigrescent calyx. I'ound 

 in Snake River canon near Ballard's Landing and on Pine Cr.. and on 

 the grade below Cuprum. Idaho, on rocky slopes. Middle Temperate 

 life zone. First collected by Cusick in 1898, then by myself (pods on- 

 ly) in 1899. This species reminds one, as to habit, of A. crassicarpus, 

 accidens. and Bcckwithii, but its relationship is here, and accidens. 

 though less related, can hardly be placed elsewhere. 



120 Astragalus Bolanderi Gray Proc. Am. .Acad. 7 337 (1868) A. 

 supervacaneus Greene. Pods with body about 1 cm. long (the slender 

 stipe 4 mm. long), about 5-7 mm. wide and 5 mm. high, thin-coriaceous 

 to almost chartaceous. oblong-lanceolate, evidently inflated, cordate 

 at base, shortly triangular-acute at the flat tip (which is as high as long 

 aud evidently declined only when young), indistinctly cross-nerved and 

 but little reticulated, arched to a half circle or more and inserted at 

 right angles to the stipe: partition intruded to the ventral suture from 

 base to middle of pod: cross-section about cc-shaped. Flowers white 

 or cream-colored, with rather short claws, about 1 cm. long, ascendin;] 

 and almost capitate, rather few, sometimes tinged with purple. Ban- 

 ner ovate, gently arched to nearly erect about 2 mm. beyond calyx tips. 

 4-6 mm. long, inclined to be stubby and short, 2-4 mm. longer than the 

 keel, with sides reflexed about 1 mm. wide below. \A''ings nearly lin- 

 ear, straight, fully 2 mm. longer than keel. Keel straight, about 4 mm 

 long, with erect tip which is abruptly arched, 3 mm. high, triangular, 

 and slightly if at all colored, long-clawed. Calyx ashy, about 5 mm. 

 long, cylindrical but a little narrower below, rounded at base and some- 

 what obliquely inserted, straight, with slender and subulate teeth une- 

 qual and a little shorter than the tube. Peduncles in the upper axils 

 only. Pedicels as long as the ovate bracts. Leaves about 1 dm. long 

 ascending. I-eaflets distant, linear-lanceolate, ashy with fine, crisped 

 and woolly appressed hairs. Internodes 4-5, 2-5 cm. long, not shorter 

 above. It grows in poor, gravelly and rocky soil, in the higher Sierras 

 from King's River north nearly to Shasta in the Upper Temperate life 

 zone. 



121 Astragalus accidens Watson Proe. Am. Acad. 22 471 (1887). 

 Pods half-oval to almost lunate, also half-oval to half-round longitudin- 

 ally, and broadly elliptical in cross-section, shortly-acute at both ends, 

 little pulpy, a trifle inflated, nearly smooth but ovary white-pubescent, 

 sometimes sulcatc dorsally, finely reticulated, 7-12 mm. long, 5-7 mm. 

 high, mostly horizontal: cross-section ovate to elliptical but sometime ■ 

 nearly round: only the ventral suture raised and thick externally and 

 straight to concave. Flowers reflexed. Banner narrow, erect, 1-1.5 

 cm. long, ascending beyond calyx tips to 45 degrees, with sides ic 

 flexed. Wings oblong, 3 mm. longer than keel, 1 mm. wide. Calyx 

 reflexed, campanulatc. 7 mm. long. Bracts 1 mm. long, equal to tie 

 pedicels. Peduncles 1-1.5 dm. long. Racemes short. Leaf rachis 8-1 j 

 cm. long. Leaflets 10-15' pairs, truncate to retuse, 1-1.8 cm. long, ap 

 pressed-pubescent below and glabrous above. Plants sparingly pubes- 

 cent except the ashy pods. This grows in open woods, Oregon. Cow- 

 Creek, Howell. Glendale, Jones. 



Astragalus accidens var Henderscni (Watson Proc. Am. Acad. ^2 

 471 1887 as species). A. Watsoni and P.-icificus Sheldon. A. cymatc • 

 des Greene. A. pruniformi.^ Jones. Pods smooth, obtuse at botli 

 ends, very fleshy, a trifle oblique, 8-23 mm. long, 7 mm. wide. 9 mm. 

 high, rather deeply reticulated when dry, indifferently spreading to re- 

 flexed, not inflated, from nearly oval to oblong-oval, apiculate, with 

 both sutures raised, the ventral nearly 1 mm. thick and the dorsal thin. 

 Flowers with the oval banner 6 mm. longer than keel and sides reflex- 

 ed 3 mm. wide below. Wings nearly oblTug. Calyx tubular-campan- 



