42 Rydberg : Rocky Mountain flora 



and the paler and smaller corolla ; from the latter in the long linear- 

 subulate bracts and narrow leaflets. 



Utah : Along Bullion Creek, above Marysvale, July 21, 1905, 

 Rydberg & Carlton J 02 4. (type) and 702 j. 



Lupinus stenophyllus (Nutt.) 

 Uipinns foliosus stenopliyllus Nutt. ; T. & G. Fl. N. Am. i : lyj 



(synonym). 1840. 



Stem slender, probably i m. high, finely silky-strigose ; stipules 

 small, subulate ; petioles of the stem-leaves about 3 cm. long, 

 strigose ; leaflets about 5, narrowly linear-oblanceolate, about 3 cm. 

 long, 4 mm. wide, usually conduplicate, acute, green, glabrous 

 above, sparingly silky-strigose beneath; raceme about i dm. long, 

 lax, more or less one-sided ; bracts lanceolate, shorter than the 

 calyx, deciduous ; calyx densely silky-strigose, more or less 

 spurred at the base ; upper lip ovate, 4 mm. long, the lower 

 lanceolate, 6 mm. long; corolla light-blue, 7—8 mm. long; banner 

 slightly shorter than the broad wings ; fruit unknown. 



This species has been included in L. laxlflorus and L. tenelliis. 

 It resembles the latter in habit but differs in the spurred calyx and 

 green leaves. From the former it differs in the narrower leaves, 

 glabrous above, and the smaller flowers. The type was collected 

 on the "Oregon Plains" by Nuttall. 



Lupinus laxispicatus 



Perennial ; stems 3—4 dm. high, slender, striate, sparingly 

 strigose; stipules small, lanceolate; petioles strigose, 5-15 cm. 

 long; leaflets 7—10, narrowly oblanceolate, acute, green, glabrous 

 above, strigose beneath, 4—5 cm. long, about 6 mm. wide ; inflor- 

 escence lax, rather few-flowered ; bracts lanceolate, shorter than 

 the calyx, deciduous ; calyx grayish silky-strigose, gibbous ; lips 

 lanceolate, the upper 6 mm., the lower 7 mm. long ; corolla blue, 

 about 10 mm. long ; banner only slightly shorter than the wings. 



This species is nearest related to L. Scliaibcrac, which however 

 has broader leaves, larger flowers and the upper lip of the calyx 

 is ovate and much shorter than the lower. L. laxispicatus grows 

 on high mountains. 



Idaho: Kootenai County, July, 1887, /. H. Sandberg. 



Lupinus Macounii 



ort caudex ; stems : 

 silky-strigose, somewhat branched; stipules lance-subulate ; petioles 



Perennial with a short caudex ; stems several, 3—6 dm. high, 



