Lupinus. LEGUMIN0SJ5. 223 



leaflets, usually smooth ahove, and its short brarts. Dr. Kcllogg's L. crrvinux appears to be a 

 stout form, with laige leaves and short pedicels. 



30. L. nanus, Dougl. Slender, ^ to 1 foot high, often brandling from the base, 

 villous or linely pubescent : leallets linear to oblanceolate, lialf to an inch long, 

 usually acute, pubescent on both sides, the })etioles 1 to 3 times longer : racemes 

 loose ; bracts exceeding the calyx ; ])edicels slender : upper calyx-lip 2-cleft : petals 

 usually 5 or 6 lines long, very broad, bluish-pur])lo or at lirst nearly white ; the 

 standard sliortcr and usually marked with dark-purplo lines : ovules G to 8 : pod ^ 

 to 1^ inches long. — JJciitli. in Jlort. 'J'rana. n. sor. i. 401), t. M; Watson, 1. c. 



From Siicramcnto Valley to Southern California, fic<iiient. Flowering in curly spring and 

 rather variable. 



31. L. micranthus, Dougl. Slender, 3 to 12 inches high, villous : leaflets 

 linear, \ to 1 incii long : racemes short, often rather dense ; bracts shorter than the 

 calyx ; pedicels a lino long or less : calyx-lips broad, the upper with short triangu- 

 lar lobes : petals 2 or 3 lines long ; the wings and standard very narrow. — Lindl. 

 liot. Reg. t. 1251 ; Watson, 1. c. 



Var. microphyllus, Watson, 1. c. The lower and moni liirsuto form, with tlie 

 leaflets but 3 to G lines long. 



Var. bicolor, Watson, 1. c. Flowers a little larger, witli the petals somewhat 

 broader, and pedicels 1 or 2 lines long. — L. bicolor, Lindl. Bot. Reg. t. 1109. 



Var. trifidus, Watson, 1. c. Very hairy ; lower lij) of the calyx 3-parted. 



From Pnget Sound to Soiithcrn California, very frequent ; the var. frjfidiis near San Francisco, 

 remarkable lor the division of the calyx. The var. bicolor approaches forms of L. lunucs, and 

 tends to unite the two species. 



-(- -{- Flowers scattered: bracts more or less persistent, except in L. leptophyllus and 

 L. Stiveri : ovules 4 to 6, or 8 in L. trimcatus. 



32. L. leptophyllus, Henth, Slender, rarely branched, 1 or 2 feet liigh, vil- 

 lous : stipules linear-setaceous: leadots 8 to 10, narrowly linear, 1 to 1^ inches 

 long, glabrous above ; the very slender petioles 2 or 3 times longer : racemes 3 to 10 

 inches long ; bracts setaceous, much exceeding the calyx : upper calyx-lip narrow, 

 deeply cleft : petals 5 or 6 lines long, bluish-lilac, with a deep-crimson spot upon 

 the standard. — Hort. Trans, n. ser. i. 409 ; Watson, 1. c. 530. 



Sacrnmento Valley and southward, on hills and in rocky places. A form occurs with rather 

 broader leaves. 



33. L. sparsiflorus, Benth. Very slender, sparingly branched, 1 to 1^ feet 

 high, villous with spreading hairs : upper leaves much reduced : leaflets 5 to 9, 

 linear, ;J to 1 inch long ; the narrow petioles 2 to 4 times longer : bracts linear- 

 setaceous, .shorter than the calyx, subpersistent ; pedicels short : upjier calyx-lip 

 2-parted : petals violet, 5 lines long; the standard shorter: pod a half to an incli 

 long. — PI. Hartweg. 303 ; AVatson, 1. c. 



From the Sacramento Valley to Southern California. 



34. L. truncatUS, Nutt. Rather stout, sparingly branched, I to 2 feet high, 

 finely i)ubesc,ent, becoming nearly glabrous: stipules sliort, subidate ; leaflets 5 to 7, 

 linear, narrowed from tlie truncate or somewhat 3-toothed apex to the base, smooth 

 above, | to 1^ inches long, nearly equalling the petiole: bracts short, subpersistent: 

 pedicels ^ to 2 lines long : upper calyx-lip 2-cleft : petals deep-purple, 4 or 5 lines 

 long ; the standard shorter : pod \\ inches long. — Hook. Sc Am. Bot. Beechey, 336; 

 Watson, 1. c. 



From San I'Vancisco to San Diogo. 



35. L. Stiver!, Kellogg. Diffusely branched, about a foot high, finely and 

 rather sparingly pubescent : leaflets 5 to 7, broadly cuneate-obovate, ^ to 1^ inches 

 long, obtuse or acutish, raucronulato, scarcely more glabrous above, nearly equalling 



