"1^24 LEGUMINOSJi. Lupinus. 



tho petioles: moenuvs 2 or 3 inches long, 5- 10 llowcreil, raUior long-peilnnelod ; 

 bmcts Hhort; luHliuol.s 1 or 2 lines long: uppur ciilyx-lip 2-piirtctl with broml iicuto 

 lobes : petals or 7 linos long ; the yellow Htandanl shorter than tho rose-colored 

 wings: pod an inch long, nearly glabrous. — I'roc. Calif. Acad. ii. 192, lig. 58 ; 

 Watson, 1. c. 537. 



In tho Sierni Neviulii from Nevada Co. to Mariposa Co. A peculiarly haiulsonie and well 

 marked species. 



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

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

 vate, obtuse or retuse or sometimes acute, mucronulate, | 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, reildisli-purple : pod hirsute, an inch long. 

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



In dry places, from tho Sacramento to Soutlioru 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 : iiiceme short, often nearly sessih; ; bracts short, linear-setaceous, 

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

 trifid : petals 4 lines long, violet ; tho standard shorter, with a yellow spot in tho 

 coiitro : i)oil 4-soeded. — yynoi)sis, (5, t. 1 ; Watson, 1. c. 



Var. ArizoniCUS, Watson, 1. c. leather 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. micranthus : 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. Floivers as in § 1 : ovules 2 : cotyledons broad and clasping after gei-mination, 

 nsually I'mrf'-peisisterU. Erect annuals: leajhts cimeate-oblom/ or -ohovate : 

 bracts persistent : pod ovate. — ri-ATYOARPOS, Watson. 



* Flowers verticillate : stents tall, with elongated peduncles. 



39. L. microcarpus, Sims. Villous with long hairs, | to 1 1 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, sometnnes 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 : i)etals purple to white, G or 7 lines long, 

 equal; tho keel slightly ciliate : pods villous, 8 lint-s long. — liot. Mag. t. 2413; 

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

 & 37. 



Frequent from the Columbia lUver 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 upjier lip often entire : petals yellow or ochroleucous, rarely- 

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



