490 MINNESOTA BOTANICAL STUDIES. 
lines long; sepals nearly as long, often purple beneath: akenes 
puberulent or glabrous, lenticulate, slightly margined, with 
small, short beak: fruit in a globose to oblong head. Early 
spring. British Columbia to California and Colorado. 
Var. ellipticus GREENE, FI. Francis, 298. 1892. 
Ke. ellepiccus (GREENE, Pitt. 2:.110. 1890. .3: 92. i6@m 
Basal leaves elliptic-lanceolate to oblong, entire or only once 
lobed on one side: petals often much narrower than in the type: 
head of akenes drooping to the ground. Distributed with the 
type in its lower altitudes and southern range. 
65. R. Macauleyi Gray, Proc. Am. Acad. 15: 45. 1880. 
Kt. mivaus Rev. Chief Eng. U.S. A. 1878: 1833. “ioe 
Linn. 
Some of the roots thick and fleshy: plant 3 to 7 inches high ; 
stem villous-hairy to glabrous, young leaves very villous on 
margins: leaves thick, lanceolate to ovate-spatulate, entire ex- 
cept toward the apex, there often coarsely or finely 2 to 10 
toothed; lower leaves petiolate, others sessile or on short, 
sheathing petioles: petals obovate to flabelliform, crenulate, 5 
to 7 lines long, yellow; sepals shorter, densely coated beneath 
with dark brown hairs; peduncles hairy: akenes smooth, some- 
what compressed, slightly margined; styles linear-subulate, 
persistent, nearly straight: head of fruit ovate to oblong or 
cylindric. Near snow line, 11,500 feet altitude in La Plata 
mountains and San Juan Co., Colo. 
66. R. nivalis Linn. Sp. Pl. 553. 1753. 
fe. sulphureus SOLAND. in Phipp’s Voy. 202. 1774. 
A short caudex with slender roots: plant pubescent or be- 
coming glabrous below, 3 to 7 inches high: lower leaves cune- 
ate-flabelliform to reniform, about 3-lobed or deeply cleft; lobes 
sometimes notched; upper leaves subsessile, about 5-lobed or 
parted, divisions linear-oblong, entire: petals yellow, obovate 
to roundish, sometimes emarginate, 3 to 4 lines long; sepals 
shorter, densely wooly: akenes rather turgid; beak subulate. 
Greenland, Hudson Bay region, Alaska, Hall island, Behring 
Sea, south in Rockies to Lat. 55°, Northern Asia and Europe. 
67. R. natans C. A. Meyer ex Ledeb. Ic. ¢. r1z. - 1830. 
ft. radicans C. A. MEYER ex Ledeb. Ic. 7. 776. 1830: 
it. Purshiz Torr. Ann: Lyc. IN. Y. 2: 162. jageee 
Not Richards. 
