LEGUMINOSiE, 39 



line long : upper calyx-lip bifid, its ovate segments short, parallel ; lower 

 scarcely longer, 3-nerved, slightly notched at apex : corolla 1^4 lines long, 

 deep blue ; the obovate retuse banner with a white spot ; wings coherent 

 at tip, inflated, exposing the base of the broad short keel ; this ciliate 

 below the apex : pod rigid, slightly falcate, 7 — 9-seeded. — Very common, 

 preferring rich low meadow lands adjacent to the salt marshes ; also 

 occurring in a reduced form, on the low plains of the interior. 



11. L, trifidus, Torr. in Wats. Proc. Am. Acad. viii. 535 (1873). Slender, 

 branched from the base, 6—10 in. high, pilose-canescent : racemes short 

 (1 3 whorls): upper calyx-lip deeply cleft, segments divergent ; lower 

 broad, deeply trifid : corolla 2^^ lines long, blue, the white spot on the 

 lianner permanent ; keel deep, scarcely falcate, shortly and obtusely 

 pointed, and with a few stiffish ciliolfe above the middle. — In sandy land, 

 at San Francisco and Alameda ; in habit, pubescence, size of corolla, etc., 

 very like No. 9, but most distinct. 



12. L. bicolor, Lindl. Bot. Reg. t. 1109 (1827) ? Low, often diffuse, 

 stoutish, 6—10 in. high, silky-pilose : leaflets 5 — 7, linear-spatulate, 1 in. 

 long : upper calyx-lip short, bifid ; lower twice as long, entire : corolla 

 4 — 5 lines long, blue and white, the white changing to red-purple ; banner 

 reflexed ; keel falcate, acute, ciliate toward the apex : pod small, about 

 5-seeded. — Sandy soil about San Francisco, in a slender depressed very 

 hairy form ; also on gravelly crests of the Oakland Hills, where it is 

 stouter, with ascending branches. The two may well be distinct species ; 

 and neither plant agrees perfectly with the original L. hicolor of the 

 Columbia River. 



13. L. pachylobus, Greene, Pittonia, i. 65 (1887). Stout, rigid, barely 

 1 ft. high, with a few ascending branches from the base, hirsute through- 

 out : petioles slender and long ; leaflets 5 — 7, linear, -^4 in. long : racemes 

 on stout peduncles, whorls 2 — 4 : fl. 3 lines long, subsessile, deep blue : 

 calyx-lips broad, the upper very short, notched ; lower entire and twice 

 as long : pod large (13^ in. long, 4—5 lines wide), very hirsute, 4—6- 

 seeded. — Briones Hills, east of San Pablo Creek, Contra Costa Co., 15 

 April, 1887 ; collected only by the author. The fiill grown pods are very 

 thick and succulent just before maturity ; even bearing down to the 

 ground the stout branches. 



14. L. nanus, Dougl. in Beuth. Hort. Trans, n. ser. i. 409 (1833). 

 Commonly 1 ft. often 2 ft. high, with many decumbent branches, not 

 succulent, minutely and not densely villous-pubescent : leaflets oblance- 

 olate, 1 in. long : racemes short-peduncled, 3 — 7 in. long, of many rather 

 indistinct whorls of large deep piirple fragrant flowers : upper calyx-lip 

 deeply cleft ; lower 3-dentate : corolla 6—7 lines long, the orbicular 

 retuse banner closely reflexed, the white middle part turning rose-red ; 



