Lupinus. LEGUMINOS^E. 121 



obovate, 1 or 2 inches long, acute or obtuse, glabrous above, the lower leaves shorter 

 than the petioles : raceme j to 1 foot long, slender ; bracts linear-subulate, equalling 

 the calyx ; pedicels slender, 1 to 2 lines long : calyx-lips nearly equal : petals light- 

 blue ; the standard naked ; the keel naked or ciliate : pod f inch long, 2 - 4-seeded, 

 pubescent : seeds light-colored, two lines in diameter. Hook. & Arn. Bot. Beechey, 

 336; Watson, 1. c. 531. 



In the mountains from the Columbia River to Yosemite Valley, and eastward to the Wahsatch. 



20. L. calcaratus, Kellogg. Stems clustered, as in most perennial species, 

 rather stout, 1 to 2 feet high, finely appressed-silky : leaflets 6 to 12, usually 9, 

 oblanceolate, 1 or 2 inches long, acute, more or less silky on both sides, at least 

 half as long as the petioles: racemes 3 to 6 inches long ; bracts subulate ; pedicels 

 slender, 1 to 3 lines long : calyx silky, conspicuously spurred, the lips unequal : 

 petals white or blue ; the pubescent standard six lines long, exceeding the wings and 

 ciliate keel : pod an inch long : seeds light-colored, nearly three lines long. Proc. 

 Calif. Acad. ii. 195, fig. 60; Watson, 1. c. 531. 



On the eastern slope of the Sierra Nevada and eastward in Northern Nevada. 



21. L. laxiflorus, Dougl. Slender, 1 to 2 feet high : pubescence short, silky, 

 appressed : leaflets 6 to 8, narrowly oblanceolate, acute, silky on both sides, at least 

 half as long as the petioles : racemes loose and slender ; pedicels 2 to 3 lines long : 

 calyx narrowed and saccate at base, the upper lip shortly toothed : petals blue, 3 to 



5 lines long, equal; the standard somewhat pubescent and keel ciliate : pod less than 

 an inch long : seeds two lines in diameter. Lindl. Bot. Reg. t. 1140 ; Watson, 1. c. 

 531. L. arbusttis, Dougl. ; Lindl. Bot. Reg. t. 1230. L. caudatus, Kellogg, Proc. 

 Calif. Acad. ii. 198, fig. 61. 



From Vancouver Island to Klamath Valley and Donner Pass, and eastward to the Wahsatch 

 Mountains ; also Arizona, Palmer, 



22. L. argenteus, Pursh. Slender, 1 or 2 feet high, hoary with short silky 

 appressed pubescence: leaflets 5 to 8, linear-lanceolate, f to 1 inches long, acute, 

 smooth above or nearly so, about equalling the petioles : racemes nearly sessile, 2 to 



6 inches long ; pedicels very slender, usually short : calyx campanulate, gibbous 

 but not spurred at base, the upper lip broad and toothed : petals blue or cream- 

 colored, 3 or 4 lines long ; standard very broad, naked or slightly hairy ; the keel 

 naked or subciliate : pod short : ovules 3 to 5. Flora, i. 468 ; Watson, 1. c. 532. 



Plains of the Columbia and Snake Rivers, and eastward ; probably in Northeastern California. 



23. L. holosericeus, Nutt. Slender, 1 to 1 J feet high : pubescence silvery- 

 silky, closely appressed : leaflets 6 to 8, narrowly oblanceolate, f to 1 inches long, 

 at least half as long as the petioles, acute, very silky on both sides : racemes nearly 

 sessile, 3 to 6 inches long ; flowers verticillate ; pedicels short, rather stout : calyx 

 slightly spurred ; the lips nearly equal, the upper broad and shortly toothed : petals 

 flesh-color, 2 to 5 lines long ; the standard very broad, pubescent on the back ; the 

 keel ciliate : pod an inch long : seeds rather large. Torr. & Gray, Flora i. 380 ; 

 Watson, 1. c. 532. 



East of the Sierra Nevada from the Columbia River to Southern Nevada. 



24. L. meionanthus, Gray. Low, branched and leafy, a foot high : pubescence 

 dense, silky-tomentose : leaflets 5 to 7, oblong-lanceolate to oblanceolate, f to 1 inch 

 long, acutish, silky both sides, about equalling the petiole : racemes short and 

 small, nearly sessile ; bracts ovate ; flowers subverticillate or scattered, blue, on 

 pedicels \ to 1 line long : calyx campanulate, not spurred, densely tomentose : 

 petals two lines long, scarcely exceeding the calyx ; the standard very broad, naked ; 

 the keel slightly ciliate : pod half an inch long : seeds white, two lines in diameter. 

 Proc. Am. Acad. vi. 522 ; Watson, 1. c. 533. 



Collected only by Dr. Anderson near Carson City, probably in the Sierra Nevada. 



