December 7, iqi2 



"5 



winofs inflated 3 mm., two-tliirds of their length covered by the 

 banner, 3 njm. deep, the lower edges united only at the apex 

 but meeting and concealing the keel except for a small space 

 above the calyx; keel glabrous, broad for the flower, 3mm. deep, 

 the width well sustained toward the acute purple apex. 



Figure 21. Flowers of Lupinus amabilis, enlarged 



The type, in the herbarium of the Nevada Agricultural 

 Experiment Station, is Heller 1004J, collected May 18, 1910, 

 at Eugene, Lane county, Oregon, where it was abundant in 

 clayey soil on the railway embankment south of the town. 



The relationship of this beautiful species is uncertain, but 

 it should probably be referred to the group of which L. laxiflorus 

 may be taken as the type. Geographically it has better claims 

 to the name stenophyllus than my io^^4 and other plants referred 

 by Dr. Rydberg to that species, but differs so much in general 

 appearance from Nuttall's type that I can not well consider it 

 identical. 



The structure of the calyx is the most peculiar so far ob- 

 served, on account of the insertion of the bractlet and the keel 

 or midvein showing so prominently on the interior of the lower 

 lip. 



Lupinus obtusilobus sp. nov. 



Perennial, silky sericeous throughout: stems in clumps from 

 short rootstocks, 2 dm. high, leafy: petioles about the length of 

 the leaflets; leaflets 5 to 7, elliptical-oblong, 3 cm. long, 6 mm. 

 or less wide, the acutish apex with a short raucro; stipules sub- 



