294 DESCRIPTIONS OF NEW SPECIES 
‘Has. In Georgia, (Dr. Baldwin and Leconte,) near Chapel-Hill, North Carolina, (Schweinitz.) 
—A remarkably distinct species, diffusely subdecumbent, with slender wiry stems and branchlets, 
terminating in one or a few (three to five) large capituli, very similar to those of 4. surculosus, 
near which it ought to range. Exceedingly rough, (particularly when dry,) with minute, tubercu- 
late, hooked bristles. Rays large, and of a purplish-blue. ‘The inner leaves of the involucrum 
somewhat viscid at the tips. 
Aster * amethystinus, pubescent; stem usually erect, villous, racemosely pani- 
culate, many-flowered, branchlets subfastigiate; leaves entire, lanceolate-linear, 
acute, auricularly dilated and amplexicaule at base; involucrum loose, or squar- 
rose, the sepals acute or acuminate; achenium villous; rays numerous, azure. 
Has. In Massachusetts, near Cambridge and Salem; rare. A well marked and ornamental spe- 
cies, somewhat allied to 4. graveolens, intimately to 4. Nove-Angliz, but from which it is en- 
tirely distinct, the flowers not half the size, pale blue, very numerous, and disposed in a panicle, &c. 
Aster graveolens, suffruticose, divaricately branched, minutely and viscidly 
pubescent; leaves oblong-lanceolate, amplexicaule, entire, very acute, radical 
ones narrowed at the base; branches usually one-flowered, fastigiate; involu- 
crum squarrose, loose, leafy; sepals linear-lanceolate, acuminate; achenium 
smooth, ten-ribbed. 
Has. On shelving rocks, near the banks of the Arkansa; also on the banks of Kentucky River, 
near Lexington, (Dr. Short.) On comparing the plants anew, I find the present and following 
from Missouri, distinct species. 
Aster oblongtfolius, herbaceous, stem, and linear-oblong, obtuse leaves mi- 
nutely scabrous, amplexicaule; stem divaricate, flowers fastigiate ; involucrum 
foliaceous, loose; sepals linear-oblong, acute. 
Has, Banks of the Missouri, in arid, argillaceous and denudated places. Not viscid or strong- 
scented, as in the preceding, to which, at the same time, it is much allied. 
— Aster *Sayianus, stem simple, terminating in a leafy corymb, above, and 
branchlets with the involucrum glandularly pubescent; leaves crowded, lanceo- 
late, acuminate, distantly serrulate, amplexicaule, and scabrous on the margin, 
those of the branchlets ovate, entire; sepals of the involucrum spreading, nearly 
equal, acuminate; capitulum hemispherical, the rays blue; achenium smooth, 
ten-striate. 
Has. In the forests of the Rocky Mountains and the Oregon plains. Nearly allied to 4. mo- 
destus, and proximately to 2. Nove-4Angliz. 
