306 DESCRIPTIONS OF NEW SPECIES | 
pressed, flat, oblanceolate, marginate, the disk glandularly pubescent.— 
Dwarf alpine annuals, with depressed, divaricate stems, branching from the 
base. Strigosely and canescently pubescent; leaves linear, entire. Flowers 
sessile, terminal, somewhat corymbose, large for the size of the plant. “Fhivo- 
lucrum imbricate, scales lanceelate, membranous on the margin, which is 
lacerately ciliate. Rays longer than the disk, lilac, or rose-purple. Some- 
times presenting a rudimentary style, but the achenium always imperfect. 
Townsendia * strigosa; stem depressed, branching from the base; flowers 
fastigiate, subcorymbose; leaves linear-spathulate, much attenuated below; se- 
pals lanceolate-ovate. 
Has. On the Black Hills, (or eastern chain of the Rocky Mountains,) near the banks of the 
Platte.—Flowering in June. Rather softly strigose, with short, appressed, whitish hairs. From 
two to four inches high, the branches spreading, dividing usually into a sort of leafy corymb of 
sessile flowers, from one to five on a forked branch. Capitulum the size of the common daisy, ~ 
with much the aspect of an Aster, but the sepals all erect, closely imbricated, broadly membranous 
and lacerate on the margin. Rays twelve to fourteen, rose-red; discal florets pale-yellow. Stigmas 
acuminate, somewhat pubescent, scarcely at all exserted. 
Townsendia * grandiflora; stem canescent, divaricately branching from the 
base, branches one or few-flowered, leaves linear-sublanceolate, very acute, 
nearly smooth, or minutely pubescent, green; capitulum hemispherical ;. invo- 
lucrum of three series, the sepals lanceolate, filiformly acuminate, minutely 
fringed; rays twenty-eight to thirty, or more, bidentate. ‘ 
Has. With the preceding, which it resembles wholly in ‘habit, but with the flower as large 
nearly as that of the China Aster, (Callistephus Chinensis.) Branching from the base, and spread- 
ing out sometimes from’six to ten inches along the ground. Leaves linear, much attenuated below, 
and very acute, when green rather succulent, and appearing smooth, though somewhat pubescent 
beneath, (seen through a glass.) Sepals elegantly imbricated, perfectly lancéolate, auch ‘acumi- 
nated, seariose, except the centre, which is green, the margin minutely lacerate-ciliate. Rays pale 
lilae, longer than the disk.—A plant which well deserves cultivation, from its large, showy flowers. 
ERIGERON. (Linn.) 
§. Pappus mostly single, or with the external, very minute, rays numerous: 
Erigeron glabellum.—Rocky Mountain plains. Radical leaves sometimes 
more or less serrate. Pappus rather long and persistent, single, of about twenty- 
