OF AKTS AND SCIENCES : MAY 13, 1873. 535 



* * * Annuals, erect ; leaflets mostly 5 - 7 (in L. leptophyllus, 8 - 10) ; 

 upper calyx-lip 2-parted or bifid ; keel mostly ciliate. 

 f Flowers verticillate ; bracts deciduous. 



40. L. affinis, Agh. Pubescent with very short spreading or 

 subappressed hairs, 1° high, branched ; leaflets broadly cuneate- 

 obovate, 1/ long, emarginate or rounded at the apex, glabrous or 

 smoother above, half as long as the petioles ; racemes long-peduncled ; 

 bracts short ; lower calyx-lip entire or equally 3-toothed ; petals 5" 

 long, nearly equal, bluish-purple and white, the keel usually naked ; 

 ovules 5 - 9 ; pod^l - lh' long. — From San Francisco to San Diego ; 

 an early spring flower. Near the larger flowered form of L. nanus, 

 with which it was confounded by Agardh himself, but distinguished by 

 its short pubescence, broader and obtuser leaflets, usually smooth 

 above, and its short bracts. L. cervinus, Kellogg, is probably only a 

 stout form of this species. 



41. L. nanus, Dougl. Slender, ^-1° high, branching often from 

 the base, villous with spreading hairs or only short-pubescent ; leaflets 

 linear to oblanceolate, ^ — 1' long, acute, pubescent on both sides, the 

 petioles 1-3 times longer ; racemes loose, 2-6' long ; bracts mostly 

 exceeding the calyx and attenuate ; pedicels slender, 2 - 3" long ; upper 

 calyx-lip 2-cleft, the lower entire or slightly toothed ; petals 3 - 6" 

 (usually 5 - 6") long, very broad, bluish-purple, the banner at first 

 nearly white, spotted with dark-purple lines, the white turning to red- 

 dish-purple ; ovules 6 - 9 ; pod \ - \\' long, 4 - 8-seeded. — From Sac- 

 ramento Valley to Southern California and Western Arizona. Flow- 

 ering in spring ; quite variable in the size of its flowers and breadth 

 of the leaflets. 



42. L. micranthus, Dougl. Near the last; slender, branching 

 from the base, 3 - 12' high, villous ; leaflets linear, \ — V long ; racemes 

 short, usually rather crowded ; bracts shorter than the calyx ; pedicels 

 ^ — 1" long ; calyx-lips broad, the upper with two short triangular 

 lobes, the lower obtuse and subentire or slightly toothed ; petals 2 - 3" 

 long, the wings and banner very narrow. — From Puget Sound to 

 Southern California. 



Var. microphyllus. (L. microphyllm, Nutt. MS.) A lower and 

 more hirsute form, with leaflets but 3 - 6" long. San Diego. 



Var. trifidus. (L. trifidus, Torr. MS.) Very hairy ; lower lip of 

 the calyx 3-parted. — Found near San Francisco by several collectors, 

 and perhaps a good species, though the only apparent characteristic 

 is the remarkable division of the calyx. 



