442 
STNGENESIA I'RUSTRANEA. 
Root perennial. Stem about two feet high, obtusely angled, producing a 
few opposite branches and with the whole plant very pubescent, almost 
tomentose. First leaves simple, lanceolate, the mature leaf unfolding two 
pair of small, lateral leaflets. Flowers terminal, on the long, almost naked v 
branches. Leaves of the exterior involucrum eight, ovate-lanceolate, slightly 
acuminate, as long as the interior, nearly glabrous. Florets of the ray eight, 
yellow, dilated at the summit, and from specimens appearing to be undu- 
late. Seed nearly round, slightly winged, emarginate and crowned with a 
short pappus more resembling a leaf than an awn. Chaff of the receptacle 
linear, acute, longer than the florets of the disk. 
Grows in the western districts of Georgia. 
Flowers August— September. 
15. Tripteris._ Lin. 
C. glabra; foliis peti- 
olatis, lanceolatis, inte- 
gerrimis, radicalibus 
pinnatis, caulinis trifo- 
liolatis; radiis integris; 
seminibus obovatis, 
apice nudis. 
Glabrous; leaves pe- 
tiolate, lanceolate, en- 
tire, those of the root 
pinnate, of the stem 
trifoliate; florets of the 
ray entire; seed obo- 
vate, naked at the 
summit. 
Sp. pi. 3. p. 2253. Mich. 2. p. 138. Pursh, 2. p. 568. Nutt. 2. p, 
180 . 
Root perennial. Stem four to six feet high, terete, fistulous, glabrous, 
branching near the summit. Leaves opposite, the upper trifoliate; leaflets 
lanceolate, acute, entire, glabrous, slightly ribbed, scabrous along the mar- 
gins. Flowers rather small, in a loose terminal corymb. Leaves of the 
exterior involucrum linear, shorter than the interior; of the interior lanceo- 
late, coloured, particularly along the margin. Florets of the ray eight, yel- 
low, narrow lanceolate, entire; of the disk numerous, yellowish. Chaff of 
the receptacle linear, longer than the florets of the disk. Seeds obovate ? 
slightly winged, emarginate at the summit. 
Grows in the upper districts of Carolina and Georgia; very abundant in 
the western districts of Georgia. 
Flowers August — October. 
