488 MINNESOTA BOTANICAL STUDIES. 
lines long, much exceeding the stamens: akenes oblique, com- 
pressed, glabrous, rather abruptly joined to the short, persistent 
style: head of fruit subglobose. September. Near ‘‘ Los 
Joares” ; and Santa Rosa, state of Mexico. Altitude, 8,400 feet. 
58. R. adoneus Gray, Proc. Acad. Phila. 1863: 56. 
FR. amenus Gray, Am. Journ. Sci. Ser. 2, 33: 241. 1862. 
Not Ledeb. 
FP. orthorynchus var. alpinus Warts. Bot. King Exp. 9. 
EO] i. 
Root slender-fibrous : plant shaggy-hairy, 4 to 12 inches high, 
sometimes becoming decumbent: leaves usually 2-—3-times 3- 
parted and lobed, lobes all narrow-linear, acute ; primary di- 
visions of leaves sessile or nearly so; petioles of basal leaves 
membranous in lower part; stem leaves sessile or on a sheath- 
ing base, usually borne opposite resembling an involucre: petals 
5 (or 6 to 8), large, yellow, rounded outwardly, cuneate at base, 
6 lines long, much exceeding the lanceolate sepals which are 
hairy beneath: akenes somewhat compressed, acutish: style 
long, straight, subulate; head globular to oblong. Summer. 
Rockies of Colorado. Altitude 10,000 feet. Cultivated. In- 
troduced 1881. 
59. R. triternatus Gray, Proc. Am. Acad. 21: 370. 1886. 
Roots fascicled, fleshy-fibrous: plant low: leaves often 3- 
times 3-divided and parted; leaflets long-petioled, their lobes 
narrow-linear to linear-spatulate and obtuse: petals yellow, 4 to 
s lines long, obovate: akenes turgid, not margined; beaks 
slender : receptacles thick : head of fruit globose. Near Golden- 
dale, S. Wash. 
60. R. Grayi Britton, Bull. Torr. Club, 18: 265. 1891. 
R. pedatifdus Hoox. Fl. 1: 18.¢.78. 1829. Not Smith. 
PR. Hookeri REGEu, Bull. Soc. Nat. Mosc. 34: 2: 49. 
1861. Not Schlecht. 
FR. Drummondi GREENE, Erythea, 2: 192. 1894. 
Rather stout, 1-2-flowered: basal leaves either biternately 
or pedately divided and parted into linear oblong or spatulate 
lobes, main divisions often stalked: stem leaves similar, only 1 
or 2: petals 3 lines long; sepals shorter, sparsely and finely 
villous: akenes each about 1 line long, borne ina globular head. 
Lat. 52° to 55°, on eastern Rockies, Gray’s Peak, Colo., and: 
near Ironton, 12,000 to 13,000 feet. 
