428 
SYNGENESIA FRUSTRANEA. 
Sp. pi. 3. p. 570. Walt. p. 215? Mich. 2. p. 141. Pursh, 2. p. 570.' 
Nutt. 2. p. 177 - 
Root perennial. Stem five to six feet high, glabrous, di and tri-choto- 
mously divided, the branches much more numerous than usual in this genus. 
Leaves ovate-lanceolate, serrulate, with a long, tapering, somewhat acumi- 
nate point, scabrous on the upper surface, pubescent and sprinkled with 
glandular dots underneath, the lower ones opposite, the upper generally 
alternate, on petioles three to six ipches long. Flowers very small, nume- 
rous, in terminal panicles. Involucrum imbricate, the leaves ovate-lanceo- 
late, very acute, fringed. Florets of the ray five to ten? yellow, slightly 
three-toothed; of the disk tubular, yellowish, not very numerous. Anthers 
longer than the florets. Seed compressed. Pappus two very slender awns, 
hairy. Chaff of the receptacle concave, as long as the florets of the disk, 
hairy and slightly angled near the summit. 
Grows in the mountains of Carolina and Georgia. 
Var. a. Ferrugineus. 
I place under this name a plant I received from Louisville, Georgia, 
which agrees with the preceding in size, habit, and conformation of the 
leaves and panicle; it differs in having its flower larger, its chaff more con- 
spicuously three-cleft, the leaves more strongly serrate, all with the under 
surface ferruginous, almost tomentose, and covered with glandular dots. 
22. Aristatus. E. 
H? caule erecto, sca- 
bro; foliis inferioribus 
oppositis, arete sessili- 
bus, ovali-lanceolatis, 
acutis, dentatis, sca- 
bris, subtus pilosis; 
corymbo paucifloro; 
seminibus compressis, 
aristis (2) persistenti- 
bus. E. 
Stem erect, sca- 
brous; lower leaves op- 
posite, closely sessile, 
oval-lanceolate, acute, 
toothed, scabrous, hai- 
ry underneath; flowers 
few, corymbose; seeds 
compressed, awns 2, 
persistent. 
Stem two to three feet high, scabrous, branches rather slender, not nume- 
rous, the lower opposite, the upper sometimes alternate. Leaves pale green, 
veiny, not nerved, oval-lanceolate, irregularly toothed, sessile, the upper 
sometimes alternate, not decurrent. Flowers in a small terminal corymb. 
Peduncles slender, rather long. Scales of the involucrum ovate-lanceolate, 
imbricate, pubescent. Florets of the ray narrow, about one and a half in- 
ches long, yellow. Scales of the receptacle ovate, oblong, rather longer 
