444 BOTANY. 



§ 25. PODO-SCLEROCARPI. Pod tliick-cartilagiuous or coriaceous, exsertly stipitate, compressed 

 or turgid, incurved ; sutures not intruded, sometimes thickened and separating from the valves. 

 Perennial, branched, ashy-puberulent ; stipules small, distinct. 



104. A. SOLEKOCAKPUS, Gfray. Very much branched, nearly canescent ; leaflets 6-9-pairs, linear ; 

 racemes loose ; flowers white ; pod hoary-puberulent, very thict, lunate or nearly hamate, 1' long, 

 turgid, cuspidate, rugulose, the stout stipe 2-3 times longer than the calyx.— Washington Territory. 



105. A. SPEIEOCAEP0S, Gray. Pod linear-lanceolate, flattened, spirally coiled. See page 74. 



106. A. CYRTOIDES, Gray. Froc. Amer. Acad. 6. 525. Softly pubescent ; pod linear, terete, strongly 

 curved or annular. See page 75. 



§ 26. HOMALOBI. Pod vetch-shaped, flattened or less compressed, straight, margined by the nerve- 

 like sutures, coriaceous or chartaoeous, sometimes stipitate. Perennial, the leaves pinnate with 

 many or few leaflets, or in some species simple. 



* Flowers in peduncled racemes or spikes ; pod many- (7-20-) ovuled. 

 (a.) Stipules apparently all distinct; pod long-stipitate ; calyx-teeth 3-4 times shorter than the tube ; 

 caulescent, mostly over 1° high, pinnately leaved with many leaflets. 



"107. A. coLLDsrus, Dougl. Erect or diffuse, with a loose grayish pubescence ; leaves linear or oblong- 

 linear, obtuse, attenuate at base ; peduncles twice longer than the leaves ; flowers reflexed, on subereot 

 pedicels ; calyx oblong-campanulate or cylindric, gibbous at base, white-pubescent, the teeth triangular- 

 subulate; corolla nearly white, scarcely twice exceeding the calyx, the banner somewhat longest ; pod 

 pubescent, linear-oblong, turgid, attenuate at base, 1' long with the stipe. — Oregon and Washington 

 Territory. 



108. A. FIMPES, Torr. Pod 1' long, flat, glabrous, reflexed. See page 75. 



109. A. STENOPHYLLtrs, T. & G. Glabrous, erect ; leaflets narrowly linear, 6-8" long ; peduncles 

 twice longer than the leaves ; flowers 10-16, in an oblong raceme, spreading, purplish or white, the banner 

 exceeding the keel; calyx campanulate, dark-pubescent, teeth rather broad, very obtuse; ovary glabrous, 

 scarcely equaling the stipe; pod unknown. — Montana, (Wyeth.) 



(Z>.) Stipules connate, at least the lower ones; pod more or less stipitate. Caulescent; leaves pin- 

 nate, with many leaflets; calyx-teeth half shorter than the tube. 



110. A. MULTIFL0HTJ8, Gray. Slender; stipules dark ; pod oblong, reflexed, exserted. Seepage 75. 



111. A. BouRGOVii, Gray. Strigulose-pubescent ; stems a span high, ascending from a woody 

 caudex ; stipules scarious, nearly wholly connate ; leaflets 7-8 pairs, oblong or lanceolate, acute; pedun- 

 cles much exceeding the leaves ; racemes short, 5-10-flowered ; pedicels about equaling the dark-pubes- 

 cent oblong-campanulate calyx-tube ; calyx-teeth rather stout ; corolla violet, 4-|-5" long, the keel with 

 an inflexed somewhat produced apex, equaling the wings, a little shorter than the banner ; immature 

 pod ovate-lanceolate, black- or cinereous-pubescent, rounded at base, on a very short included stipe. — 

 Mature fruit unknown. Eocky Mts. of British America, (Bourgeau.) 



112. A. Palliseri, Gray. Sparingly strigulose-pubescent, glabrate ; stems about 1° high, ascending 

 from a woody base, branched, slender, rather rigid ; upper stipules herbaceous, distinct ; leaflets 4-9 

 pairs, linear or lanceolate, 7-12" long, 1-1^" wide, rather rigid, obtusish ; peduncles equaling the leaves ; 

 raceme loosely 7-12-flowered ; peduncles equaling the short-campanulate calyx ; calyx- teeth not half as 

 long as the tube ; corolla whitish-purple, 4^-5" long, curved, keel with a narrow inflexed tip and shorter 

 than the wings ; pod linear, 8-9" long, 1" wide, turgid, glabrous, straight, on a very short but manifest 

 stipe. — Eocky Mts. of British America, (Bourgeau.) 



113. A. POREECTUS, S. Watson. Stout ; leaflets broad-obovate ; pod oblong, gibbous dorsally, exsert, 

 erect upon the spreading pedicel and stipe. See page 75. 



(c.) Stipules connate, or at least the lower ones ; pod sessile. Cairlescent. 

 (1.) Calyx-teeth very slender, somewhat exceeding the tube. Low, from a woody caudox, pinnately 

 leaved ; stipules aU more or less connate. 



114. A. PAUCIFLOEUS, Hook. Dwarf, many-stemmed, cinereous-pubescent, matted-decumbent, with 

 crowded leaves and rather large stipules ; leaflets 3-5-pairs, oblong or lanceolate, acute ; peduncles about 

 equaling the leaves, 2-5-flowered ; flowers approximate, racemose, spreading ; corolla violet, 4^5" long, 

 the shortly incurved keel very obtuse, shorter than the wing and half as long as the reflexed banner; 

 pod linear-oblong, flattened, silky -puberulent, 4-5" long.— Eocky Mts. of British America. 



115. A. TEGETARius, S. Watson. Flowers 2-3" long; pod 2-3" long, ovate-oblong, straight. See 

 page 76, and Plate Xlll. 



116. A. MISER, Dougl. Cinereous-puberulent ; stems diffuse, a span long, slender, loosely leaved ; 

 stipules rather large, the upper connate to the middle; leaflets broad-linear or oblong, mostly obtuse; 



