4:6 LEGUMINOSiE. 



42. L. albifroHS, Benth. in Linell. Bot. Reg. 1. 1642 (1833) ; L. DougJasilr 

 Agh. Syn. 84 (1835). Arborescent, the distinct trunk-like woody stem 

 1 — 3 ft. high, parted into numerous short leafy and flowering branches, 

 these ending in a rather long-peduncled loose raceme : leaflets 7 — 9, 

 oblanceolate, 1 in. long or more, silvery-silky on both sides : fl. verticillate, 

 large, deep blue : upper calyx-lip broad, cleft to the middle, or less- 

 deeply ; lower entire : petals siibequal, the broad baruier with a whitish 

 spot which soon changes to rose-purple ; keel ciliate : pod 2 in. long, 

 5__9.seeded : seed oval, 2 lines long, brownish, encircled marginally by a 

 dark line. Var. collinus. Smaller in all its parts and with no trunk- 

 like stem, the branches decumbent from a short caiidex. — Very common 

 along the seaboard, though not near the shore, but on clayey slopes 

 and along ravines ; the variety on rocky summits about the Presidio, 

 San Francisco, and on the islands in the Bay. Very distinct from the 

 next, although foreign authors having mixed them in their herbaria, 

 seem to have found the confusion hopeless. Feb. — Apr. 



43. L. Chaiiussojiis, Esch. Mem. Acad. St. Petersb. 283 (1826). Com- 

 monly 3 ft. high, but never arborescent ; the suff'rxitescent branches 

 forming a more or less dense tuft and leafy throughout : foliage much as 

 in the last, but petioles shorter ; raceme more elongated and dense, but 

 scarcely peduncled : fl. less distinctly whorled, paler blue, or of a lavender 

 shade ; banner with a permanent yellowish spot. — Apparently confined 

 to the sand dunes of the San Francisco peninsula and Point Reyes. 

 Probably not in the southern part of the State ; never away from the 

 sea. The "var (?) longebrac'eaUis " of the "Botany of California" must 

 needs be the very type of the species. Much later in its flowering than 

 the last. Apr. -July. 



44. L. variicolor, Steud. Nom. Bot. ii. 78 (1841) ; Greene, Pitt. i. 216 ; 

 L. versicolor, Lindl. (1837), not of Sweet; L. liiioraliH, B. &W. Bot. Calif, 

 i. 118 partly, not of Dougl. Woody basal branches short, slender, very 

 tough, the decumbent, or often assurgent annual ones very leafy, 1 ft. long 

 or less: pubescence of the leaves scant, appressed, the stems often sparingly 

 hirsute : leaflets 7 — 9, narrow, acute : raceme short, the whorls often 3, 

 2 or 1 only : fl. large ; banner white or pale blue ; wings blue ; keel 

 ciliate throughout its length : pods large. —Frequent on grassy north- 

 ward slopes at the Presidio, San Francisco, and southward, in San Mateo 

 Co. ; most nearly related to the next, the flowers occasionally yellowish, 

 and there are manifest hybrids between the two. Apr. — June. 



45. L. arboreus, Sims, Bot. Mag. t. 682 (1803) ; Bot. Reg. xxiv. t. 32 : 

 L. rivularis, Dougl. in Lindl. Bot. Reg. t. 1595 (1833j. From arborescent 

 and 6—10 ft. high to suffrutescent and bushy ; slightly silky-pubescent : 

 leaflets about 9, narrowly lanceolate, % — li^ in. long, acute, glabrate 

 above : raceme often 1 ft. long ; fl. whorled, sulphiir-yellow, or the wings 



