_AND GENERA OF PLANTS. 427 
KRIGIA. (Schreber.) 
Krigia occidentalis, (Nurr. in Journ. Acad. Nat. Sci. Philad., Vol. VIL. p. 
104;) leaves mostly lyrate, with slender segments; scapes glandularly pubes- 
cent; sepals five to eight, lanceolate, carinate, somewhat obtuse ; sa zt the 
pappus scarcely the length of the scales. 
Has. Arkansa. Annual, as usual, and so similar to K. virginica, that I at first Desaibarea it 
the same ; but the specific characters given are constant, and prove it very distinct. In K. virginica, 
the sepals are flat, linear-lanceolate, and acuminate, and the awns of the achenium are ——- times 
longer than the scales. 
Krigia dichotoma, (Nutt.) is nothing more than an advanced state of growth 
of K. virginica. 
Subtribe vi. ScorzonErEs&. (Lessing.) 
_*STEPHANOMERIA. 
Capitulum subcylindric, three or five-flowered. Involucrum three to five- 
leaved; sepals linear-oblong, imbricate, one-nerved, with a caliculum of a 
few shortish, unequal scales. Receptacle naked, scrobiculate. Achenium 
: oblong, obtusely five-ribbed or pentangular, transversely rugose, the summit 
truncated. Pappus of ten to twenty-four thick, closely plumose rays, sepa- 
rate, or connected together at the base by pairs.—Perennial, tuberous-rooted, 
or annual, herbaceous plants, very much branched, above nearly leafless, the 
lower leaves linear, or runcinate-pinnatifid. Capituli terminal; the flowers 
pale rose-red. Nearly allied, both in habit and character, to Es sagt 
but differing in the pappus and achenium. 
STEPHANOMERIA minor; 2%, smooth, and much branched from the base, 
branches obscurely striate; leaves entire, linear-subulate; achenium subrugu- 
lose, with five obtuse, carinated ribs; pappus of twenty to twenty-four rays. 
Lygodesmia minor, Hoox. Flor. Bor. Am., Vol. I., p. 295, tab. 103, fig. A. 
Has. On the plains and hills of the Oregon. About a foot high, flowering only at the summit; 
flowers small, pale rose-red ; caliculum of about five, small, ovate scales. ‘Pappus white. 
Stephanomeria * heterophylla; 2, radical leaves oblong, runcinately toothed 
or pinnatifid, subhirsute, as well as the lower part of the stem; upper leaves 
