218 LEGUMINOSAE. 



bescence od the stems and under the surface of the leaves; leaflets 5 to 8, 

 broadly oblanceolate, thin, mucronulate, 1 to 3 in. long; racemes 6 to 17 in. 

 long, Blender-peduncled, loose, the verticils often distinct; pedicels slender; 

 calyx-teeth elongated, the upper notched slightly at the narrow apex; corolla 

 blue, changing to dull brown; keel ciliolate below the middle. 



Common plant in openly wooded cafions of the Coast Eanges: Ukiah; Vaca 

 Mts. ; Napa Range; Oakland Hills and southward. Apr.-June. 



8. L. formosus Greene. Stems decumbent or ascending, 2 to 3 ft. long, the 

 whole plant silky-pubescent; leaflets mostly 7 to 9, narrowly or broadly ob- 

 lanceolate, abruptly acuminate, 1 to 1% in. long, equaling the petiole; raceme 

 with more or less distinct whorls but often dense, the peduncle short or scarcely 

 any; flowers 6 to 7 lines long, rich violet; keel glabrous. 



Rich high places in the fields and sandy lands of the Coast Range Valleys and 

 the plains of the Sacramento and San Joaquin. July-Oct. 



9. L. polyphyllus Lindl. Stem stout, erect, nearly simple, 3 to 5 ft. 

 high, sparingly villous, equably leafy up to the inflorescence; petioles 6 to 12 

 in. long except the uppermost; leaflets 9 to 16, oblanceolate or lanceolate, 

 sparingly hirsute beneath, glabrous above, 3 to 6 in. long; stipules adnate 

 for half their length; raceme short-peduneled, dense, 1 to 2 ft. long; flowers 

 not in whorls or only subwhorled, on long pedicels; calyx-lips of nearly equal 

 length, entire; bractlets often wanting; corolla 6 or 7 lines long, with blue 

 wings and red-purple banner; keel falcate, acuminate, glabrous; pod 1 to \y> 

 in. long, % in. broad, 7 to 9-seeded. 



Near the coast from Marin Co. (Sausalito, Pt. Bonita, and Tennessee -Bay) 

 northward; also in the interior at higher altitudes (Howell Mt., Mt. Shasta). 



10. L. affinis Agardh. Stout and very succulent; stems fistulous, 14 to 20 

 in. high, branching mostly from the middle; glabrous except a short and sparse 

 pubescence on the lower surface of the leaves; leaflets 6 or mostly 7 or 8, 

 oblong-oblanceolate or broadly cuneate-obovate, obtuse or retuse, 1 to 2 in. 

 long; petioles 1% to 4 in. long; racemes 4 to 8, on short peduncles; flowers 

 6 to 7 lines long; bractlets short; upper calyx-lip with 2 divergent teeth, the 

 lower lip entire; petals 5 to 6 lines long, deep bluish purple, the keel glabrous; 

 ovary densely villous-pubescent. 



North Coast Ranges southward to Southern California. Very common in late 

 Feb. and in Mar. Especially characteristic of depressions in hills caused 

 by recent or old landslides. Also common along the banks of winter water- 

 courses in the hills and in low heavy soil generally. Var. carnosulus Jepson, 

 usually simple with the keel villous in the middle. — Berkeley Hills. 



11. L. nanus Dougl. Slender, not succulent, 6 to 15 in. high, often 

 branching from the base, villous or finely pubescent; leaflets 7 or 8, linear to 

 oblanceolate, % to 1 in. long, usually acute, the petioles % to 3 times longer; 

 racemes loose, short-peduncled, 3 to 7 in. long, of several distinct or some- 

 \\li:it indistinct whorls of large fragrant flowers; bracts exceeding the calyx; 

 pedicels about 3 lines long; upper calyx-lip deeply cleft; lower calyx-lip 

 3-dentate, the middle tooth sometimes obscure or wanting; corolla blue, the ban- 

 ner with the white middle spot purple-dotted along the median salens ami 



turning red -purple in age, 5 to <; lines Long; banner orbicular, retuse, with the 

 sides reflexed; rings lightly joined, forming an obliquely ovate inflated sac; 

 ke.i falcate, ciliate above the middle. 



Common everywhere in the Coast Range region and rather \ariablc. Flower- 

 ing mostlv in Apr. 



