372 DESCRIPTIONS OF NEW SPECIES 
Solenotheca * tenella. : 
Has. Near Arequipa, in Peru. (Mr. Curson.) Annual, with a simple, slender root. The 
whole plant three to four inches high; very smooth. Leaves below opposite, above alternate, 
deeply pinnatifid; segments two or three pairs, linear, serrate, or merely three-toothed at the sum- 
mit, less than half a line wide; branches terminating in one or two flowers; capituli pedicel- 
late. Involucrum smooth and cylindric, about half an inch long, a line wide, and a little ventri- 
cose towards the base, five-toothed, the teeth shallow. Rays two or three, scarcely exserted, the 
border somewhat round, greenish-yellow. Tubular florets about five, five-toothed, the dentures 
connivent. Stigmas ending in a slender, pubescent cone, Pappus longer than the long and slen- 
der achenium, very shining, somewhat yellow, achenium subsericeous. 
Subtribe V—HELENIE 2. (Cassini. ) 
Division I.—GatLLaRDIEs. 
GaILLarvIa pulchella; (DECAND.) 
Has. Arkansa plains; common. 
Gaillardia aristata; (Pursu. ) 
- Has. Arkansa Plains. 
Batpwinia uniflora; (Nurr.) Stem sometimes three-flowered. 
LEPTOPODA. (Nutt.) 
, 
LeEptopopa *pinnatifida; (Herb. Schw.,) radical and lower leaves incisely 
pinnatifid, with remote segments, cauline sessile, narrow-linear, subulate, 
smooth; stem fistulous, pubescent, one-flowered ; sepals nearly in a single series, 
very short; rays about twenty, linear; achenium pubescent, palew of the pap- 
-pus obtuse and awnless. 
Has. East Florida. (Dr. Baldwin.) About a foot or eighteen inches high, somewhat slender, 
with very narrow and rather numerous leaves; upper part of the stem naked; flower small; rays 
about half a line wide, terminating in three small teeth. 
Leptopoda Helenium; smooth; leaves entire; radical, oblong-lanceolate, denti- 
culate, lower stem leaves lanceolate-linear, attenuated into long petioles, mid- 
dle stem leaves only decurrent; naked portion of the stem long; stem one to 
three-flowered, the apex, before flowering, tomentose; involucrum shorter than 
the disk; achenium smooth, the pappus slightly lacerate. 
Has. West Florida. Sepals short, lanceolate and unequal; rays more than twenty, wedge- 
shaped, trifid at the summit, sometimes very wide. 
