Lupinus. LEGUMINOS^E. 123 



leaflets, usually smooth above, and its short bracts. Dr. Kellogg's L. cervinus appears to be a 

 stout form, with large leaves and short pedicels. 



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

 villous or finely pubescent : leaflets linear to oblanceolate, half to an inch long, 

 usually acute, pubescent on both sides, the petioles 1 to 3 times longer : racemes 

 loose ; bracts exceeding the calyx ; pedicels slender : upper calyx-lip 2-cleft : petals 

 usually 5 or 6 lines long, very broad, bluish-purple or at first nearly white ; the 

 standard shorter and usually marked with dark-purple lines : ovules 6 to 8 : pod 

 to 1| inches long. Benth. in Hort. Trans, n. ser. i. 409, t. 14 ; Watson, 1. c. 



From Sacramento Valley to Southern California, frequent. Flowering in early spring and 

 rather variable. 



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

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

 calyx ; pedicels a line 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. 

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



Var. microphyllus, Watson, 1. c. The lower and more hirsute form, with the 

 leaflets but 3 to (i lines long. 



Var. bicolor, AVatson, 1. c. Flowers a little larger, with 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 lip of the calyx 3-parted. 



From Puget Sound to Southern California, very frequent ; the var. trifidus near San Francisco, 

 remarkable for the division of the calyx. The var. bicolor approaches forms of L. nanus, and 

 tends to unite the two species. 



-*- -t- Mowers scattered : bracts more or less persistent, except in L. leptophyllus and 

 L. Stioeri : ovules 4 to 6, or S in L. truncatus. 



32. L. leptophyllus, Benth. Slender, rarely branched, 1 or 2 feet high, vil- 

 lous : stipules linear-setaceous : leaflets 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. 536. 



Sacramento 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 Avith spreading hairs : upper leaves much reduced : leaflets 5 to 9, 

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

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

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

 long. PL Hartweg. 303 ; AVatson, 1. c. 



From the Sacramento Valley to Southern California. 



34. L. truncatus, Nutt. Rather stout, sparingly branched, 1 to 2 feet high, 

 finely pubescent, becoming nearly glabrous : stipules short, subulate ; leaflets 5 to 7, 

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

 above, f 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 1| inches long. Hook. & Arn. Bot. Beechey, 336; 

 Watson, 1. c. 



From San Francisco to San Diego. 



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, mucronulate, scarcely more glabrous above, nearly equalling 



