40 LEGUMINOSH. (PEA FAMILY.) 
Villous; leaflets narrow, both sides pubescent. 
Bracts elongated; flowers rather large..... eestewieGaafel neues ress es L, nanus, 9 
Bracts short; flowers small, narrow.......e+seeeeeeee eee eeee L. micranthus. 10 
Ovules several; bracts somewhat persistent; flowers scattered; petioles 1 to 4 times 
the length of the leaflets. 
Slender; leaflets smooth above; bracts long..........2ee.eeeeeee L. leptophylus. 11 
Slender; leaflets linear; bracts short...... 0... ccs eee eee eee eens L. sparsiflorus. 12 
Stout; leaflets truncate; bracts short............ se cece ee eee eet eeee L. truncatus. 13 
Stouter; leaflets broad; bracts short; very hispid..........-.++ L. hirsutissimus. 14 
* * Perennials; herbaceous, tall; flowers large; ovules 8 to 12. 
Stout; long petioles; leaflets 10 to 16, very large..........--.+-05 L. polyphyllus. 4 
Stout; short petioles; leaflets 7 to 10, large...........0- see reece eens L. rivularis. 5 
Slender, decumbent; short petioles; leaflets small.... .....---+-+++- L, littoralis. 6 
Stoutish, erect; short petioles; keel narrow, falcate........-.+++++++ L. albicaulis. 7 
** * Perennials; shrubby, leafy, silky-pubescent. . 
Leaflets narrowly lanceolate; flowers yellow........-..+++05 Seis eases L. arboreus, 1 
Densely silky-pubescent; flowers blue to white.............- -.-.-4, Chamissonis, 2 
Pubescence short, tomentose; shrubby at the base............+0+06- L. Douglasii 3 
1. L. arboreus, Sims. Often 4 to 8 ft. high; sulphur-yellow, fragrant flowers, ver- 
ticillate in a loose raceme; pods large, pubescent, 10-12-seeded. 
2. I. Chamissonis. Esch. Less shrubby, 1 to 4 ft. high; leaflets 7 to 9, cuneate 
obovate, a half to an inch long, very silky on both sides; bracts lanceolate, shorter than 
the calyx; flowers sub-verticillate, blue, violet, rarely white. A variety about San 
Francisco with long bracts. 
3. L. Douglasii, Agardh. Slightly woody at base; pubescence short, tomentose or 
silky; leaflets 7 to 9, oblanceolate to cuneate-oblong, 1 to 1} inches long, pubescent on 
both sides; bracts linear-setaeeous, exceeding the calyx; flowers, blue or purple; calyx 
with long setaceous bractlets. 
4, L. polyphyllus, Lindl Stout, erect, 2 to 5 ft. high, sparingly villous; stipules 
large, triangular to subulate; leaves distant, long petioled; leaflets 2 to 6 inches long; 
racemes « foot or two long; flowers mostly scattered on long pedicels, blue, purple or 
white; bracts oblanceolate, equaling or shorter than the calyx; keel naked. 
5. IL. rivularis, Dougl. Stout, erect, 2 to 6 ft. high, nearly smooth; stipules subu- 
late or setaceous; leaflets 7 to 10, about equaling the petioles, 4 to 5 inches long; raceme 
often 1 tc 2 ft. long; bracts setaceous, exceeding the calyx; flowers purple or rarely 
white; keel slightly ciliate. 
6. L. littoralis, Doug]. Stems slender decumbent or ascending, 1 or 2 ft. long; 
leaflets a half to an inch long, at least half as long as the petioles; flowers blue or violet, 
with some yellow, in short racemes; keel ciliate; calyx large, with small bractlets, 
