76 SYNOPSIS OF THE FLORA OF COLORADO. 



5-7 broadly ovate scales, tipped with slender awns. Alpine. Hall cO 

 Harbour, 276. , Wet Mountain Valley, Brandegee. Mount Lincoln, at 14,000 

 feet altitude, and Horse Shoe Mountain, Coulter. South Park, Canby. 

 Meehan. 



ACTINELLA SCAPOSA, ^utt. Villous ; scapes single from a woody 

 caudex, 6'-9' high, leafless, bearing a single head ; leaves radical, linear- 

 spatulate, acute or obtusish, 2 / -3 / long, 2"-3" wide, becoming smooth and 

 shining, conspicuously punctate, entire; heads V wide, including the rays ; 

 scales of the involucre ovate, appressed, rather shorter than the disk, in 

 about 3 series, densely villous ; rays about 12, 3"-4 // long, cuneate-ob- 

 ovate, bright yellow, 4-nerved and 3-toothed ; scales of the pappus 5, 

 short-awned, oval. Hall & Harbour, 27 '5. Monument Park, Porter. Gar- 

 den of the Gods, Coulter. 



ACTINELLA BICHAUDSONII, Nutt. Puberulent ; stems 3 / -G / high from 

 a perennial, somewhat branching, woody caudex; leaves petioled, rigid, 

 3/_6' long, pinuately or irregularly 3-7 parted toward the summit, divi- 

 sions narrowly linear; heads loosely corymbose, 9 // -12 // broad, including 

 the rays ; involucre shorter than the disk ; scales in 2 rows, oblong or 

 ovate, the exterior united at the base ; pappus of 5-7 ovate-lanceolate, 

 cuspidate-awned scales ; caudex and bases of the lower leaves woolly 

 tonientose. Hall & Harbour, 274. Abundant at middle elevations, South 

 Park and Ute Pass, Porter. Wilson Creek, Fremont County, Brande- 

 gee. Canby. Twin Lakes and Weston's Pass, Coulter. Redjield. 



ACTINELLA GEANDIFLORA, T. & G. Perennial, more or less densely 

 clothed with soft, white wool ; stems erect from a woody caudex, stout, 

 striate, 6 / -9 / high, leafy, simple or with 2-3 branches from the base or 

 middle of the stem ; lower leaves pinnately or bipiunately parted, with 

 margined petioles from broad scarious bases, 2'-2' long, including 

 the petiole, divisions linear ; upper cauline leaves simple or sparingly 

 divided ; heads very large, 2'-3' broad, including the bright yellow 

 rays; involucre very densely woolly with copious white wool; scales 

 of the involucre in about 2 series, lanceolate, acuminate, exceeding the 

 disk; ligules oblong, 6"-12" in length, 2-3-cleft at the truncate apex; 

 scales of the pappus 6-8, narrowly subulate, exceeding the tube of the 

 corolla ; acheuia villous-hispid. A very showy, high-alpine plant. 

 Hall & Harbour, 273. Parry ; Meehan. Mount Lincoln, at 14,000 feet 

 altitude, Gray's Peak, at 12,000 feet, and White House Mountain, at 

 13,000 feet, Coulter. 



Var GrLABRATA, Porter. Softly tomentose, becoming glabrate ? 

 stems simple from a woody caudex, O'-S' high, unbranched, naked 

 above, bearing a single head ; lower leaves spatulate-liuear, simple 

 or 3-7-parted at the summit, with long, flat, margined x^etioles from 

 somewhat expanded, scarious bases, 2 / -3 / long, including the petiole, 

 di vision slinear upper leaves linear, entire; heads IJ'-IJ 7 broad includ- 

 ing the rays; scales of the involucre ovate, rather obtuse, in about 2 

 series, woolly, but not conspicuous^ so, much shorter than the disk ; 

 ligules about 6" long, rather narrow, j'ellow, 2-3-cleft at the apex ; scales 

 of the pappus 5, subulate, acuminate, sharply serrate on the margins, 

 much shorter than the corolla of the disk, lead-colored ; acheuia viliose. 

 Alpine. Sangre de Cristo Pass, Brandegee. 



HELENIUM ATITUMNALE, L. Platte near Denver, Dr. Smith. Wet 

 Mountain Valley, Brandegee. 



HELENIUM HOOPESII, Gr. Proc. Acad. Phil., March, 1863, p. 65. Note. 

 Stem stout, somewhat tomentose above, striate-angled, 2-4 high; 

 leaves pale glaucous, thickish, punctate, smooth or slightly pubescent, 



