Lupinus. LEGUMINOS-E. 119 



coherent near the apex ; the narrow keel very strongly falcate, naked : pod 1 to 2 

 inches long. Hook. Fl. i. 165; Watson, 1. c. 527. 



Var. Bridgesii, Watson, 1. c. The more villous form, with very large flowers 

 and dense racemes : seeds nearly 4 lines long. 



Frequent, from the Columbia River to San Diego, throughout the State ; variable but well 

 marked by the characters of the flower. The mature fruit of the ordinary forms is not known. 



10. L. Sitgreavesii, Watson, 1. c. Puberulent and somewhat silky-villous with 

 spreading hairs: stipules setaceous; leaflets 7 to 9, oblanceolate, acute, 1 to 3 inches 

 long, usually glabrous above : raceme open, shortly ped uncled ; pedicels slender : 

 calyx appressed-silky, short ; the upper lip rather broad, shortly toothed or nearly 

 entire : standard rounded, naked ; keel ciliate or naked : ovules 5. 



Found on the San Francisco Mountains in Arizona and eastward, and also what appears to be 

 a more glabrous form (2012 Brewer) at Ebbett's Pass in the Sierra Nevada. 



11. L. ornatus, Dougl. Decumbent or ascending: pubescence usually short, 

 silky, appressed : stipules setaceous ; leaflets 5 to 7, oblanceolate, 1 to 2 inches long, 

 acute or acutish : raceme loose, usually shortly peduncled ; bracts subulate : calyx- 

 lips nearly equal, the upper rather shortly toothed or bifid : petals blue ; the stand- 

 ard acutish, somewhat silky on the back, often paler especially in the centre ; the 

 keel ciliate: pod 1| inches long: seed white, nearly orbicular, compressed, 2| 

 lines long. Lindl. Bot. Eeg. t. 1216; Sweet, Brit. Fl. Gard. 2 ser. t. 212; 

 Watson, 1. c. 528. 



From the Columbia River to Lassen's Peak and Mt. Shasta, at 8,000 to 10,000 feet altitude 

 (Brewer) ; Montana and W. Wyoming, Parry. 



-t- -t- Flowers smaller, except in L. Grayi, never yellow : ovules 3 to 6. 



++ Leaves distant ; lower petioles elongated ; leaflets not smooth above : racemes mostly 



dense : ovules 4 to 6. 



12. L. sericeus, Pursh. Rather stout, 1 to 2 feet high : pubescence of coarse 

 or somewhat silky spreading hairs : leaflets 5 to 8, rarely 10, narrowly oblanceolate, 

 1 to 2J inches long, acute : peduncles short : bracts deciduous, often much exceed- 

 ing the calyx : pedicels slender, 2 or 3 lines long : calyx strongly gibbous, densely 

 silky-villous ; lips nearly equal, the upper slightly toothed : petals blue or whitish ; 

 the standard hairy and keel ciliate : pod densely hairy, an inch long. Flora, 

 i. 468 ; Watson, 1. c. 529. 



From Oregon to Northern Nevada, Utah, and Montana, and doubtless to be found in North- 

 eastern California. 



1 3. L. leucophyllus, Dougl. Stout, 2 or 3 feet high, leafy, densely silky- 

 tomentose throughout and somewhat villous : leaflets 7 to 10, oblanceolate or cune- 

 ate-oblong, 1 to 2| inches long, acute; the upper petioles about equalling the leaves: 

 racemes sessile or nearly so, densely flowered and usually elongated : bracts subulate 

 or linear, subpersistent or deciduous : pedicels stout, a line long or less : upper 

 calyx-lip rather deeply cleft : petals blue or pink ; the standard densely villous, the 

 keel naked or ciliate. Lindl. Bot. Reg. t. 1124 ; Watson, 1. c. 529. L. plumosus, 

 Dougl. ; Lindl. Bot. Reg. t. 1217. 



From the Cascade Mountains of Oregon to Utah and New Mexico ; above Carson City (Ander- 

 son) and probably northward in the Sierra Nevada. 



14. L. Grayi, Watson. A span high, rather Stout, densely hoary-tomentose, 

 usually with some silky hairs : leaflets 5 to 9, cuneate-oblong or oblanceolate, obtuse 

 or acutish, \ to \\ inches long, shorter than the petioles : racemes peduncled, short 

 and loosely flowered ; bracts subulate, equalling the calyx ; pedicels more slender, 1 

 or 2 lines long : flowers subverticillate, light blue, 6 to 7 lines long, with broad 

 wings and broad naked standard : keel ciliate : pod an inch long or more, 5 6- 

 seeded, Proc. Am. Acad. xi. 126. 



