239 Rydberg : Studies on the Rocky Mountain Flora 



line, 3-10 cm. long, twice pinnatifid, densely pubescent; primary 

 divisions of the lower leaves ovate and obtuse ; those of the upper 

 lanceolate and acute ; secondary divisions oblong acute or obtuse, 

 often few-toothed : inflorescence usually much branched ; pedicels 

 in fruit 8-12 mm. long : sepals yellowish, 1-15 mm. long, oblong ; 

 petals bright yellow, spatulate, about 2 mm. long : pod (in the 

 specimens seen not fully developed) over i cm. long and less than 

 I mm. wide : seeds uniserial. 



This is perhaps nearest related to 5. incisa (Engelm.) Greene ; 

 but differs in the dense viscid pubescence of the stem, the pubescent 

 leaves and deeper divided primary segments. It grows among 

 rocks and on grassy slopes. 



Idaho : Beaver Caii on, 1895, C. L. 5//r^r, jo.?p (type in Herb. 

 N. Y. Bot. Garden) and joj/. 



Wyoming: Trout Lake, 1899, Aven & Elias Nelson, 584.8 ; 

 Head of Pole Creek, 1895, Avcn Nelson, 13 21. 



Sophia leptophylla sp. nov. 



Stems 5-7 dm. high, sparingly glandular : leaves very thin, 

 dark green, only once pinnate ; segments of the lowest leaves 

 rounded ; those of the middle lanceolate and somewhat incised ; 

 the upper segments entire : pedicels slender, in fruit 5-8 mm. long, 

 spreading: petals bright yellow, about 1.5 mm. long : pod linear, 

 8-10 mm. long, much less than i mm. wide, torulose, spreading, 

 arcuate, curved up, uniserial. 



This is nearest related to 5. incisa (Engelm.) Greene, but differs 

 in the less incised leaves and horizontal curved pod. It grows at 

 an altitude of about 2000 m. 



Colorado: Foothills, Larimer county, 1895, Crandall& Coiven, 

 S5 (type in herb. N. Y. Bot. Card.). 



Wyoming: Antelope Basin, Albany county, 1900, Aven Nel- 

 son, 7466 ; Centennial Hills, 1895, 16S6. 



Smelowskia Americana 



Hutcliinsia calycina Hook. Fl. Bor. Am. i: 58. 1834. Not 

 Uesv. 1 8 14. 



Smelowskia calycina Gray, Proc. Acad. Philad. 1863 : 58. Not 

 C. A. Mey. 1831. 



While in Europe last summer, I looked up the Asiatic type Qf 

 S. calycina, and this differs considerably from ours especially in the 

 long villous pubescence. 



