222 LEGUMINOSiE. Lupinus. 



% * Divarf perennials, mostly cesjntose : racemes usually short and dense ; bracts 

 someivlmt persistent; flowers suhverticillate, on short pedicels : iipxter calyx-lip 2-cleft 

 {^-toothed in L. aridus), the lower ?>-toothed : keel ciliate: ovules S to Q : piod hairy, 

 oblong, 3 — i-seeded. 



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

 both loose and appressed. : leaflets 5 to 7, oblanceolate, an inch long or less, acute, 

 the petioles 3 or 4 times longer : raceme dense, 2 or 3 inches long ; peduncle 

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

 long ; the elliptical standard usually shorter : pod 5 lines long. — Lindl. Lot. lieg. 

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



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

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

 strongly toothed : standard broader. 



Washington Territory and Oregon : the variety in the higher SieiTa Nevada (Lobh) ; above 

 Ebbettand Sonora Passes, at 8,500 and 12,000 feet altitude. Brewer. 



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

 leaflets 5 to 7, obovate 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 bifid : petals purple, 4 or 5 lines long ; the standard orbicular. 

 — Hook. FL i. 163; Watson, 1. c. 534. 



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

 Nevada ; above Cisco (Kellogg) ; Summit Station, in shade, Greene. 



27. L. Breweri, Gray. 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 6 lines long, at least half as long as the petiole : racemes very 

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

 upper deeply bifid, 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 from Mt. Pinos and the North Fork of the Kern River, from 8,000 to 

 12,000 feet altitude {Rothrock) and Yosemite Valle}% at 6,000 to 8,000 feet altitude {Brewer, 

 Gray), to Sierra Co., Lcmmon. 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 G, 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 equal : petals purple, five lines long, nearly 

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



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

 nearly white ; the keel tipped with dark-purple. — L. Danaus, Gray, 1. c. 



Alpine ; summits of the Cascade Mountains, Washington Ten'itory (Lyall) ; the variety on Mt. 

 Dana, at 12,500 feet altitude (Bolandcr), and on the North Fork of Kem Eiver, at 8,000 feet, 

 Eothrock. 



* * * Annuals: leaflets mostly 5 to 1 {in L. leptophyllus, 8 to 10) : tipper calyx lip 

 2-parted or bifld : pod linear, 4 - ^-seeded. 



-f- Flowers verticillate : bracts deciduous. 



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

 more or less spreading : leaflets broadly wedge-obovate, an inch long or more, 

 emargiuate or obtuse, smoother above ; the 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 {Kellogg) to San Diego ; in early spring. Distinguished 

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



