124 LEGUMINOS^E. Lupinus. 



the petioles : racemes 2 or 3 inches long,- 5 - 10-flowered, rather long-peduncled ; 

 bracts short ; pedicels 1 or 2 lines long : upper calyx-lip 2-parted with broad acute 

 lobes : petals 6 or 7 lines long ; the yellow standard shorter than the rose-colored 

 wings: pod an inch long, nearly glabrous. — Proc. Calif. Acad. ii. 192, fig. 58; 

 Watson, 1. c. 537. 



In the Sierra Nevada from Nevada Co. to Mariposa Co. A peculiarly handsome and well 

 marked species. 



36. L. hirsutissimus, Benth. Stout, a foot high or more, very hispid with 

 spreading straight and viscid stinging hairs : leaflets 5 to 7, broadly cuneate-obo- 

 vate, obtuse or retuse or sometimes acute, mucronulate, f to 1£ inches long, half as 

 long as the petioles : racemes loose, 3 to 8 inches long ; bracts short, subulate, usu- 

 ally deciduous ; pedicels 1 or 2 lines long : calyx large, the broad upper lip deeply 

 cleft : petals six lines long, nearly equal, reddish-purple : pod hirsute, an inch long. 

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



In dry places, from the Sacramento to Southern California. 



37. L. concinnus, Agardh. Low, 4 to 6 inches high, densely villous or hir- 

 sute : leaflets 5 to 8, oblanceolate, 4 to 10 lines long, obtuse ; the slender petioles 2 

 to 4 times longer : raceme short, often nearly sessile ; bracts short, linear-setaceous, 

 persistent ; pedicels very short : upper calyx-lip 2-parted, the lower rather deeply 

 triiid : petals 4 lines long, violet ; the standard shorter, with a yellow spot in the 

 centre : pod 4-seeded. — Synopsis, 6, t. 1 ; Watson, 1. c. 



Var. Arizonicus, Watson, 1. c. Eather stout, a span high, more sparingly hir- 

 sute : leaflets oblanceolate to linear, obtuse or acute : raceme more elongated : petals 

 3 or 4 lines long, equal, ochroleucous or tipped with violet : pod half an inch long, 

 3- 5-seeded. 



From Monterey to Sonora, rarely collected ; the variety in Southeastern California and Arizona. 



38. L. gracilis, Agardh. Slender, 3 to 6 inches high, very hairy : leaflets 5 to 

 7, cuneate-obovate, 3 to 6 lines long, the slender petioles 2 or 3 times longer : 

 raceme short, loose, flexuous ; bracts short ; pedicels less than a line long : petals 

 blue and white, 2 or 3 lines long, narrow ; the standard slightly shorter ; the 

 flowers nearly as in L. micrantkus : pod half an inch long : seeds a line in diam- 

 eter. — Synopsis, 15, t. 1 ; Watson, 1. c. 



From Monterey to Southern California ; rarely collected. 



§ 2. Flowers as in § 1 : ovules 2 : cotyledons broad and clasping after germination, 

 usually long-persistent. Erect annuals : leaflets cmieate-oblong or -obovate : 

 bracts persistent : pod ovate. — Plattcaepos, Watson. 



* Flowers verticillate : stems tall, with elongated peduncles. 



39. L. microcarpus, Sims. Villous with long hairs, | to 1J feet high : stip- 

 ules long, setaceous ; leaves mostly approximate, on elongated petioles ; leaflets 

 usually 9, cuneate-oblong, 1 to 2 inches long, obtuse or emarginate, sometimes acut- 

 ish, smooth above : pedicels 1 or 2 lines long : bracts subulate-setaceous, equalling the 

 calyx or shorter : calyx densely villous, large ; lips toothed, the upper very short 

 and subscarious ; bractlets often wanting : petals purple to white, 6 or 7 lines long, 

 equal; the keel slightly ciliate : pods villous, 8 lines long. — Bot. Mag. t. 2413; 

 Watson, 1. c. 538. L. palustris & lacteus, Kellogg, in Proc. Calif. Acad. v. 16 

 &37. 



Frequent from the Columbia River to Southern California ; also a native of Chili. 



40. L. densiflorus, Benth. Much resembling the last : more sparingly villous 

 with shorter hairs : bracts usually much shorter than the calyx, which is smooth or 

 finely pubescent ; the upper lip often entire : petals yellow or ochroleucous, rarely 

 white or pink. — Hort. Trans, n. ser. i. 409; Lindl. Bot. Peg. t. 1689; Watson, 



