LEGUMINOS^3. (PEA FAMILY.) 41 



7. albicaulis, Dougl. Distinguished by its flowers; which are light-blue to white, 

 the standard strongly reflexed, the margins cohering near the apex, naked, acute; the 

 narrow keel very strongly falcate. 



8. L. affinis, Agardh. Stem a foot high; leaflets broadly wedge-obovate, emargin- 

 ate or obtuse, an inch long or more; the petioles twice longer; petals 5 lines long; the 

 keel usually naked; bracts short. 



9. L. nanus, Dougl. Slender stem 6 inches to a foot high, villous, often branching 

 from the base; leaflets linear to oblanceolate, half to an inch long, the petioles 1 to 3 

 times longer; bracts exceeding the calyx; petals very broad, 5 to 6 lines long, bluish- 

 purple, or at first nearly white; the standard shorter and usually marked with purple 

 lines. 



10. L. micrantlms, Dougl. Similar to the last, but the flowers smaller, in usually 

 shorter more dense racemes; bracts shorter than the calyx; petals 2 to 3 lines long, 

 narrow. 



Var. microphylltis, Wat. The lower and more hirsute form, with leaflets but 3 to 

 6 lines long. 



Var. bicolor, Wat. Flowers larger, more like L. Nanus. 



Var. trifldiis, Wat. Very hairy; lower lip of the calyx 3-parted. 



11. L. leptophyllus, Benth. Rarely branched, 1 or 2 ft. high, villous; leaflets 

 narowly linear on slender petioles; smooth above; bracts setaceous, much exceeding the 

 calyx; petals 5 or 6 lines long, bluish-lilac, with a deep crimson spot upon the standard. 



12. L. sparsiflorus, Benth. Very slender, sparingly branched, 1 to 1 ft. high, vil- 

 lous, with spreading hairs; upper leaves very small; leaflets 5 to 9, linear, to 1 inch 

 long; petals violet, 5 lines long, the standard shorter; pod half an inch long. 



13. L. truncatus, Nutt. Stout, branched, 1 to 2ft. high; leaflets linear, narrowed 

 from the truncate or somewhat 3- toothed apex to the base, smooth above, to 1^ inches 

 long, nearly equaling the petiole; petals deep-purple, 4 or 5 lines long, the standard 

 shorter; pod about an inch long. 



Here belongs L. STIVERI, Kellogg. A beautiful species of the Sierra Nevada, with yellow standard 

 and rose-colored wings. 



14. L. hiisutissimus, Benth. A foot high or more, very hispid, with spreading 

 straight and viscid stinging hairs; leaflets broadly cuneate-obovate, obtuse or retuse, 

 rarely acute, mucronulate; flowers in loose racemes, reddish-purple, large. 



15. L. microcarpus, Sims. Villous, with long hairs, 6 to 18 inches high; leaves 

 approximate on long petioles; leaflets usually 9, cuneate-oblong, obtuse or emarginate, 

 smooth above, 1 to 2 inches long; calyx densely villous, large; petals purple to white, 

 6 or 7 lines long; the hairy 1-2-seeded pods 8 lines long. 



16. L. densiflorus, Benth. Much resembling the last; calyx smooth or finely 

 pubescent; petals yellow or ochroleucous, rarely white or pink. 



L. luteolus, Kellogg, may be found, distinguished by its more slender habit, smaller 

 and fewer leaflets, and bracts exceeding the calyx. 



