AND GENERA OF PLANTS. 287 
and small, nearly entire; panicle few-flowered, subfastigiate; capituli pedicel- 
late; scales of the involucrum linear lanceolate, acuminate; pappus white.— 
Has. On the shelving rocks of the Blue Mountains of Oregon. 
Ozs.—A very remarkable species. Perennial, forming rigid dwarf suffruti- 
cose tufts of very branching stems, scarcely a foot high, viscid, with a bitter, 
highly aromatic resin. The larger leaves roundish-ovate, about an inch long, 
those on the branches and upper part of the stem (as in some Asters) diminish- 
ing to a fourth of that size, and numerous. Involucrum ovate, squarrose at 
-base. Flowers white? 
BRICKELLIA. (Ellictt.) 
Evpatorium, but with the involucrum ovate, or hemispherical, of several se- 
ries of loosely imbricated, usually striated scales, the inner scariose, the lower 
spreading, with subulate leafy points. Florets ten to fifty. Achenia subcy- 
lindric, with ten strie. Pappus pilose, barbellate, or scarcely scabrous. Re- 
ceptacle naked.—Leaves opposite, and alternate above. Corolla purple or 
white. Flowers corymbose, or clustered. 
Section I. EusrickeLi1a.—Involucrum squarrose at base; the scales with four 
prominent strie@ on each. 
Brickellia cordifolia, (EX.uiort,) leaves opposite, cordate, acuminate, dentate, 
triply-nerved, pubescent beneath, above alternate; corolla and pappus more or 
less purple; achenia pilose above-—Has. In Georgia. 
Brickellia grandiflora, leaves alternate, deltoid-cordate, acuminate, incisely 
dentate towards the base, entire at the point, smooth on both surfaces, and co- 
vered beneath with resinous atoms; flowers in fastigiate clusters, the upper 
part of the stem branching; inner scales of the involucrum linear-lanceolate, 
acute; pappus white, achenia smooth.—Eupatorium? grandiflorum. Hoox. 
Flor. Bor. Am., Vol. IT., p. 26. 
Has. In the Rocky Mountain range, by streams, in gravelly places, and 
west, to the lower falls of the Columbia.—Perennial. Stems many from the 
same root, about twelve to fifteen inches high. The whole plant almost per- 
fectly glabrous. Leaves alternate, sometimes almost opposite, approximate, on 
longish petioles, deltoid-cordate, acuminate, coarsely and deeply toothed ‘to- 
