SYNOPSIS OF THE FLORA OF COLORADO. 57 



ing tips and whitish chartaceous margins; achenia pubescent. Twin 

 Lakes, Coulter. 



ASTER CARNEUS, Nees. Wet Mountain Valley, Brandegee. On the 

 Platte, near Denver, Dr. Smith. 



ASTER ^ESTIVUS, Ait M var. L^TIFLORUS, Gr. Varies in its smoother 

 stem, which is slightly pubescent above, and the spreading tips of the 

 involucral scales. Canon City, Branfagee. 



ASTER OBLONGLFOLIUS, Nutt. Huerfano County, Greene. 



ASTER NUTTALLII, T. & G., var. FENDLERI, Torr. Pac. E. R., 4, p. 97. 

 (A. Fendleri, Gr. PL'FendL, p. 66.) Stems many, from a subligneous 

 caudex, erect or ascending, 9'-12', high, rigid, rough-scabrous; branches 

 corymbose-paniculate, bearing one or rarely 2-3 heads ; leaves sessile, 

 rigid, coriaceous, small, linear, 6"-9" long, mucronulate, very entire, 

 glabrous, 1-nerved, hispid-ciliate on the margins ; lowest subspatulate, 

 those of the branches very short ; scales of the campanulate involucre 

 in 3 series, linear-oblong, glandulose-scabrous, mucronulate, outer ones 

 herbaceous, obtuse, lax ; inner ones acute, a little longer ; achenia pu- 

 bescent. Pueblo, Greene. Hall & Harbour. Fremont County, Bran- 

 degee. 



ASTER GLACIALIS, Nutt. Ehizoma thickish, not creeping; stems 

 2 / -4 / high, erect, minutely pubescent above, bearing a single head, 

 leafy or nearly leafless ; leaves thickish, glabrous, spatulate-oblong and 

 lanceolate, radical ones 1' 2 7 long, 2 // -4 // wide, narrowed into a long 

 petiole, obtuse or even emarginate, canline ones oblong or oblanceo- 

 late, partly clasping ; scales of the involucre nearly equal, linear-spatu- 

 late, more or less acuminate, glandular-puberulent or nearly glabrous, 

 commonly blackish-purple ; rays numerous, white or purplish. " In the 

 high alpine region," Hall & Harbour, 242. Mount Lincoln and White 

 House Mountain, at 12,000 feet altitude, August, Coulter. 



ASTER SALSUGINOSUS, Bichards. Stem erect, simple, 6'-8' high, 

 leafy, bearing 1-3 heads, pubescent above with appressed hairs ; radi- 

 cal leaves broadly spatula te or linear-obovate, with the margined 

 petiole 2'-9' long, wide, obtuse, glabrous, ciliolate, cauline ones lan- 

 ceolate and ovate, sessile and partly clasping, very acute, often mi- 

 nutely downy; heads very large, single, or 3-5 on long peduncles 

 thickened at the summit; scales of the involucre nearly equal, nar- 

 rowly linear, glandular-pubescent, lax, with mostly squarrose-spread- 

 ing or recurved, blackish tips, much shorter than the disk ; rays long, 

 bright purple ; achenia somewhat hairy. Gray's Peak, Dr. Smith. 

 Twin Lakes, Weston's Pass, and Horse Shoe Mountain, at 11,000 feet 

 altitude, Coulter. 



ASTER ELEGANS, T. & G., var. ENGELMANNI, D. C. Eaton. (A. Engel- 

 manni,, Gr. Sill. Jour. (N. S.) 33, p. 9.) Stems several from a short 

 creeping root-stock, 2-3 high, very leafy; leaves sessile, lower ones 

 oblong, obtuse, the upper ones larger, lanceolate and lance-ovate, often 

 3' long, nearly 2' wide, entire, scabrous on the margins, minutely 

 puberulent like the stem and roughened, obscurely 3-nerved and 

 feather- veined ; inflorescence corymbose, heads peduncled; involucres 

 turbinate-campanulate, 6"-10" wide; the scales ovate or oblong, 

 acute, puberuleut, the scarious margins densely lacerate-f ringed ; rays 

 8-12 in number. Sierra Madre Range, August, Coulter. 



ASTER GLAUCUS, T. & G. Stems l-2 high, branching, leafy, erect; 

 lowest leaves scale-form, the others oblong-linear, closely sessile, 



