222 LEGUMINOS^. Lupinus. 



* * Dxvarf perennials, mostly cespitose : racemes usually short and dense ; bracts 

 somew/uU persistent; flowers suhverticillate, on sliort pedicels: upper calyx-lip 2-cle/t 

 ('l-tootlu'd ill L. (iridus), the loiver 3-toothed : keel dilate: ovules 3 to ii : pud hairy, 

 oblong, 3 - ^-seeded. 



25. L. aridus, Dougl. Stems cespitose, 2 or 3 inches long : pubescenco villous, 

 both loose uud appicssed : leallets 5 to 7, obhinceokte, an inch long or less, acute, 

 the petioles 3 or 4 times longer : raceme ilense, 2 or 3 inches long ; jieduncle 

 shorter tlian the leaves ; bracts nearly equalling the calyx : petals purple, 5 lines 

 long ; the elliptical standard usually shorter : pod 5 lines long. — Lindl. l!ot. Reg. 

 t. 1242 ; Watson, 1. c. 533. 



Var. Lobbii, Watson, 1. c. Leaflets obovate or oblanceolate, half an inch long, 

 the petioles 2 or 3 times longiT : peduncles exceeding the leaves : calyx-lips more 

 strongly toothed : standard bn)ader. 



Washington Territory and Oregon : the variety in the liigher Sici ni Nevathi {Lo1>h) ; above 

 Ebbett and iSonora Passes, at 8,500 and 12,000 I'eet altitude, Brewer. 



26. L. minimus, Dougl. Appressed silky-villous : stems 3 to G inches high : 

 leallets 5 to 7, uhuvate or oblanceolate, 3 to 8 lines long, mostly acutish, the peti- 

 oles 3 or 4 times longer : peduncles equalling or exceeding the leaves : bracts linear : 

 upper calyx-lip deeply bilid : petals purple, 4 or 5 lines long; the standard orbicular. 

 — Hook. Fl. i. 1G3; Watson, 1. c. 534. 



Oregon and Washington Territory, to Northwestern Wyoming (Parry), and in the high Sierra 

 Nevada ; above L'isco (Kdluijij) ; Sunnnit Station, in shade, Greene. 



27. L. Breweri, Gmy. . Stems G inches long or less, from a spreading branched 

 woody caudex, very leafy: pubescence dense, silky, appressed: leaflets 7 to 10, 

 obovate, obtuse, 4 to G lines long, at least half as long as the petiole : racemes very 

 short, the peduncle equalling the leaves ; bracts short : calyx-lips nearly equal ; the 

 upper deeply bilid, the lower shortly and equally toothed : petals blue, equal, 3 to 

 4 lines long ; the standard orbicular. — Proc. Am. Acad. vi. 334 ; Watson, 1. c. 



In the Sierra Nevada fVo7ii Mt. Pines and the North P'ork of the Kern River, from 8,000 to 

 12,000 feet altitude (Rothrock) and Yoseniile Valley, at (i.OOO to 8,000 feet altitude (Brewer, 

 Gray), to Sierra Co., Lcinmoii. Stems sometimes very short and densely matted. 



28. L. Lyallii, Gray. Stems leafy, from a spreading woody caudex : pubes- 

 cence dense, villous, appressed : leaflets 5 or 6, obovate, 3 or 4 lines long, acutish, 

 the petioles much longer : racemes very short, the peduncles much exceeding the 

 leaves ; bracts short : calyx-lips nearly cijual : petals purple, five lines long, nearly 

 equal; the standard (illiptical. — Proc. Am. Acad. vi. 334 ; Watson, 1. c. 



Var. Danaus, Watson, 1. c. Stems less leafy : pubescenco less abundant : flowers 

 nearly white; the keel tipi)ed with tlark-purple. — L. Danaus, (Jray, 1. c. 



Alpine ; summits of the Cascade Mountains, Wasliin^ton Territory (Lyalf) ; the variety on Mt. 

 Dana, at 12,500 feet altitude (Bolander), and on the North Fork of Kern River, at 8,000 feet, 

 Eothrock. 



* * * Annuals: leaflets mostly 6 to 1 {in L. leptophyllus, & to 10) : upper calyx-lip 

 2-parted or bifid : pod linear, 4 - 8-seeded. 



+- Floivers vei-ticillate : bracts deciduous. 



29. L. aiRnis, Agardh. Stem a foot high, rather stout : pubescence very short, 

 more or less spreading : leallets broadly wedge-obovate, an iindi long or more, 

 emarginate or oljttise, smoother above; tlio petioles twice longer: peduncles long; 

 bracts short : petals 5 lines long ; the keel usually naked : ovules 5 to 7. — Sy- 

 nopsis, 20, in part; Watson, 1. c. 535. L. cervinus? Kellogg, Proc. Calif. Acad. ii. 

 229, fig. 73. 



From San Francisco and Bear Valley (Kcllorig) to San Diego ; in early sjiring. Distingiushed 

 from the larger- flowered forms of tlie next species by its short pubescence, broader and obtuser 



