APPENDIX. 44 ][ 



70. A. PiCTDS, Gray. Hoary with a loose silky pubescence ; roots filiform ; stiprdes subulate, rigid, 

 persistent, connate at base ; leaflets 3-7-pairs, narrowly linear or filiform, i-W long, most of them 

 usually abortive ; pod i-li' long, ovoid, scarcely pointed, pendcnt.-Nebraska and New Mexico, in sand. 



71. A. HOOKEKIANUS, Gray. Very low, subalpine ; pod 1-2' long, very obtuse. See page 73. 



t • J^" ^' y^'™"^^'!' ^"^ay- ^™«' ^™«'-- -J^f'- 6. 526. Strignlose-puberuient, densely branched, a span 

 high; stipules short, sheathing, not scarious; leaflets 5-9 pairs, linear-oblong ; peduncles equaling the 

 leaf, subcapitately many-flowered; calyx-teeth triangular, 4-timos shorter than the oampanulate tube; 

 corolla bright-purple, i' long, the keel falcate-incurved, equaling the wings, a little shorter than the 

 banner ; pod pendent, glabrous, oval, less than 1' long, very obtuse at the apex.-Sierras of California. 



73. A. 00PH0EU8, S. Watson. Stems stout, 1-2° long, glabrous ; pod 2' long. See page 73. 



* * * Perennial ; pod not mottled, 

 (a.) Nearly stemless, few-flowered ; pod with a very short stipe. 



74. A. MEGACARPUS, Gray. Glabrous ; leaflets 4-6 pairs, broadly oval or ovate, usually emarginate ; 

 scape 3-6-flow6red, much shorter than the leaves ; flowers 1' long, ochroleucous or whitish ; calyx oylin- 

 dric, the teeth subulate, long, little shorter than the keel ; pod ovate-oblong, 3-2i' long, acuminate, very 

 obtuse at base, erect.— "Plains of the Eocky Mts.," (Nuttall.) 



(6.) Caulescent, rather tall, leafy; leaflets many-paired, oblong or sublinear; racemes or spikes 

 mostly many-flowered. 



(1.) Pod sessile, over 1' long,' (except A. Sm-nii,) the ventral suture straight or slightly convex, the 

 dorsal strongly gibbous. — Californian. 



(1°.) Corolla yellow or yellowish, rather small, short, incurved above the calyx, the keel inflexed; 

 peduncles not exceeding the leaves. 



75. A. DoTJGLAsn, Gray. Ascending, subglabrous or somewhat ashy-puberulent ; stipules triangu- 

 lar, distinct; leaflets 10-14 pairs, linear-oblong or lanceolate, obtuse or acutiah; racemes short, loosely 

 flowered ; calyx-teeth broad-subulate, shorter than the tube ; pod gibbous-ovoid, the ventral suture 

 nearly straight. 



76. A. MACEODON, Gray. Ascending or erect, villous-hoary or sometimes rather glabrous ; stipules 

 lanceolate-subulate, distinct; leaflets 11-14 pairs, linear-oblong, obtuse, mucronate; racemes rather short ; 

 flowers at length deflexed ; calyx silky, the teeth filiform -subulate, lax, equaling the tube, litfle shorter 

 than the yellow corolla. Pod unknown. 



77. A. HOENII, Gray. Proc. Amer. Acad. 7. 398. Erect, 2° high, glabrous; stipules very small, subu- 

 late, distinct, soon reflexed ; leaflets oblong-linear, slightly appressed-hairy ; peduncles equaling the 

 leaves, capitately many-flowered ; flowers nearly sessile ; calyx half-shorter than the yellow straightish 

 corolla, the subulate teeth equaling the short oampanulate tube ; pods f long, crowded, short-ovate, acu- 

 minate, pilose, 10-15-seeded. 



(l*.) Corolla white or purplish-ochroleucous, long-exserted, straight with a subincurved apex, the 

 claws of the wings and keel about equaling the lamina; peduncles exceeding the leaves; racemes 

 elongating, the flowers many and crowded, becoming deflexed ; leaflets in many pairs, crowded, 

 usually retuse, the lowest near the stem. 



78. A. Cbotalakue, Gray. Glabrate or subglabrous; stem stout, ascending; stipules triangular, 

 distinct ; leaflets linear- or obovate-oblong, 6-16" long, not sessile; flowers white, 6-8" long ; pod ovoid, 

 1-1^' long, chartaceous, more rigid and less inflated than in the next. 



79. A. Mbnziesii, Gray. Villous- canescent, the decumbent stem becoming glabrous ; stipules scari- 

 ous, connate ; leaflets subcuneate-oblong, subsessile ; pod ovoid, nearly 2' long, thinly membranous. 



(2.) Pod with a stipe equaling the calyx, otherwise as in (1.); stipules scarious, connate nearly to 

 the top. 



80. A. CURTIPES, Gray. Erect, 1° high, hoary with a minute appressed pubescence, at length glab- 

 rate; stipules rather large; leaflets 12-16 pairs, oblong or linear-oblong, retuse, petiolulate, glabrous 

 above ; fruiting raceme short ; calyx-teeth slender-subulate, a little shorter than the oampanulate tube ; 

 pod 1-}' long, puberulent, glabrate, semi-ovoid, scarcely pointed at each end, jointed upon the rigid 

 stipe. — S. California. 



(3.) Pod 8-18" long, stipe rather long or very long, the ventral suture slightly convex, straight, or a 

 little concave ; stipules distinct ; flowers white or yellowish, nearly straight. 



(3^) Pod not attenuate at base or scarcely so, the stipe much exceeding the calyx; racemes short, 

 oblong, on peduncles much exceeding the leaves ; stipules small.— Californian. 



81. A. LBUCOPSis, T. & G. Finely tomentose-hoary or at length cinereous ; leaflets 10-18 pairs, ob- 



56 



