Rocky Mountain Flora 257 



Lupinus argentinus sp. nov. 



Perennial, densely appressed white-silky throughout : stem 

 4—6 dm. high : petioles 5—7 cm. long ; stipules lanceolate-subu- 

 late ; leaflets about 7, oblanceolate, densely silky on both sides, 

 3—5 cm. long, conduplicate and with strongly curved back : in- 

 florescence rather short and dense ; bracts ovate-lanceolate, short, 

 deciduous : flowers about i cm. long : calyx and pedicels densely 

 white-silky, spurred at the base ; lower lip lanceolate, about 

 one third longer than the upper : corolla bluish-purple ; banner 

 pubescent on the back, about as long as the wings : pods oblong, 

 densely pubescent, about 3 cm. long and 5— 6-seeded. 



This species is nearest to L. argopliylliis, but differs in the denser 

 and whiter pubescence, the broader curved leaflets and the more 

 pubescent banner. It grows at an altitude of 1200-2200 m. 



Utah : Near Reno, 1900, 5. G. Stokes (type in herb. N. Y. 

 Bot. Garden) ; Prov^o River, 188 1, J/. E. Jones, 2i6g ; Salt Lake 

 City, 1869, 5. Watson, 2jy. 



Lupinus comatus sp. nov. 



Perennial, somewhat cespitose : stem about 3 dm. high, pubes- 

 cent with long spreading silky hairs : petioles of the basal leaves 

 about I dm. long, also pubescent with spreading hairs, leaflets 

 narrowly oblanceolate, acute, 2.5—4 cm. long, green, pubescent on 

 both sides ; stem-leaves similar, but with shorter petioles ; stipules 

 linear lanceolate, long-acuminate : raceme short and dense, short- 

 peduncled ; bracts lanceolate-subulate, equalling or exceeding the 

 buds ; pedicels and calyx densely pubescent with spreading hairs ; 

 lips almost equal, ovate-lanceolate: flowers 8—10 mm. long: 

 corolla bluish-purple, rarely white ; banner slightly shorter than 

 the broad wings. 



The species is somewhat related to L. laxiflorus but the calyx 

 is not spurred, the raceme short and dense, the flowers larger and 

 the pubescence of the stem and petioles long and spreading. 



Colorado: Lake City, 1878, F. N. /-tvwr (type in herb. Co- 

 lumbia University) ; Gunnison Co., 1895, C. L. PoIIani (^) (U. S. 

 Nat. Herb.). 



Lupinus maculatus sp. nov. 



Perennial, strict : stem 4-6 dm. high, finely appressed puberu- 

 lent : petioles short, 2—4 cm. long, almost glabrous ; leaflets 5-7, 

 those of the lower leaves obovate-oblanceolate, mucronate ; those 

 of the upper oblanceolate and acute, sparingly appressed hairy 

 beneath, glabrous above, 3—5 cm. long : inflorescence short-pedun- 



