RocKv Mountain Flora 159 



philns. In the former, which is very rare in the Rockies, the 

 upper stem-leaves have broad and short lobes, which are elliptical 

 to obovate ; and in the latter the basal leaves are not reniform but 

 almost orbicular in outline. A'. //it'/Zr/v grows in bogs at high altitudes. 



Idaho : Near Lake Pend d'Oreille, 1892, Sandbtrg, MacDougal 

 & Heller, 842 (type in herb. N. Y. Bot. Card.). 



Wyoming : Big Horn Mountain, 1899, F. Tiveedy, 2j8^. 



Montana: Sperry Glacier, 1901, F. K. Vreelami, mo. 



Ranunculus stenolobus 



Perennial with a cluster of fibrous roots, perfectly glabrous : 

 stems 1-3 from the same clump, 1—2 dm. high, usually branched : 

 basal leaves and lower cauline petioled ; petioles 4— 10 cm. long ; 

 blades three times ternately dissected into almost linear segments, 

 which are 6—15 mm. long and 1—3 mm. wide, usually somewhat 

 narrowed at the base ; the primary divisions distinctly pctiolulate : 

 sepals oval, 4-5 mm. long : petals obovate, 7-8 (rarely 9-1 1) 

 mm. long : head of achene spherical or slightly oblong, about 6 

 mm. broad : achenes turgid, glabrous : style slender. 



This species is somewhat intermediate between R. adoneus and 

 R. triternatus, but the stem is more elongated and branched. 

 Some of the specimens cited below have been referred to the 

 former, but in that plant the stem is usually simple, the petals 

 over I cm. long, cuneate-flabelliform and overlapping each other, 

 the lobes of the leaves narrower and not narrowed downward. In 

 the leaf-form and flowers it resembles more R. triternatus, but that 

 grows in big clumps with numerous stems, and the segments are 

 more decidedly petiolulate. 



Wyoming : Headwaters of Cliff Creek, 1900, C. C. Curtis 

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



Utah: Alta, Wahsatch Mts., 1879, ^^- ^- Jones, 1104.; 

 Wahsatch Mt., 1869, 5. Watson, ^o. 



Papaver pygmaeum 



A cespitose and scapose perennial ; leaves all basal, numerous 

 2—3 cm. long ; blade less than i cm. long, broadly ovate in out- 

 line, deeply cleft into rounded-oblong or obovate segments, spar- 

 ingly hispid or glabrous : scape 4-6 cm. high, sparingly hirsute ; 

 so also the calyx, which is obovate in bud : petals yellow, i cm. or 

 less long : pod obovoid, about i cm. long, densely bristly. 



This species is nearly related to P. radicatum Rottb., but is a 

 still smaller plant, with shorter, broader, less divided, less bristly 



