CATALOGUE. 89 



Francisco Mountains, 1871; Willow Spring, Ariz., Loew (1115); Rocky- 

 Canon, Ariz., Rothrock (285). An apparently variable species of some- 

 what uncertain limits. 



Lupinus paevifloeus, Nutt.— In the Sierra Nevada and northward to 

 the Columbia, and also in the Wahsatch Mountains, where it was collected 

 in 1871. 



Lupinus laxifloeus, Dougl.— From "Washington Territory to Nevada 

 and Utah ; in the Wahsatch, 1871. 



Lupinus aegenteus, Pursh. — Perennial, herbaceous, with short ap- 

 pressed silky pubescence, the numerous stems rather low, leafy, much 

 branched, often decumbent at base : leaflets 5 to 8, narrowly oblanceolate, 

 smooth above or nearly so, equalling the short petioles : racemes nearly 

 sessile, short: flowers small, blue or whitish, on slender, usually short 

 pedicels : calyx broad, somewhat gibbous : petals naked or nearly so : pods 

 3-5-seeded. — Oregon to Montana; at Mosquito Pass, Colo., Wolf (196). 



Var. decumbens, Watson, I. c. 532, rather stout, with denser racemes, 

 and var. aegophylla, Watson, I. c, more silky-pubescent, and nearly equally 

 so on both sides of the leaves, the flowers larger, and the calyx decidedly 

 spurred, are both very common in the Rocky Mountains from Montana to 

 New Mexico. The first was collected near Gray's Peak by Wolf (197, 

 202), at Rancheria Springs, Ariz., Loew (199), and at Sulphur Springs, 

 Southern Arizona, Rothrock (543), the latter specimens closely approach- 

 ing the typical form; var. aegophylla at Santa Fe\ N. Mex., Rothrock 

 (1,59). 



Lupinus holoseeiceus, Nutt. — Much resembling the latter variety of 

 .the last species, but more densely appressed white-silky throughout, the 

 standard hairy upon the back, and the keel ciliate. — On the eastern side of 

 the Sierra Nevada from Oregon to Southern Nevada and Utah, where it 

 was collected in 18 Yl. 



Lupinus leucophyllus, Dougl. — From Oregon to Utah and New 

 Mexico ; collected in the Wahsatch in 1871. 



Lupinus c-espitosus, Nutt. — Perennial, dwarf, the stems very short and 

 cespitose : pubescence appressed-villous : leaflets 5-7, oblanceolate, several 

 times shorter than the petioles : racemes sessile, short, dense : bracts long, 



