SYNGENESIA FRUSTRANEA. 
425 
tosis, plerumque alter- 
nis; involucri squamis 
foliaceis, squarrosis, 
lanceolatis; paleis trifi- 
dis. E. 
surface, tomentose un- 
derneath, generally al- 
ternate; scales of the 
involucrum leaf-like, 
squarrose, lanceolate; 
chaff 3-cleft. 
Stem, four to six feet high, pubescent and scabrous, sparingly branched. 
Upper leaves alternate, very long, ovate and oval-lanceolate, sometimes 
slightly acuminate, with fine and distant serratures. Flowers terminal, 
rather large, on short and robust peduncles. Leaves of the involucrum 
longer than the disk, ciliate with long tapering hispid summits. Florets of 
the ray twelve to fourteen, yellow; of the disk numerous, five-cleft, with the 
summits hairy. Seeds four-angled, slightly compressed. Pappus subulate. 
Chaff of the receptacle three-cleft, hairy towards the summit, the middle 
segment much larger than the lateral. 
This plant appears to me to approach very near to the H. Tomentosus 
of Michaux; it is not the H. Mollis of Willd.; perhaps these plants, hitherto 
united, are really distinct. 
Grows in the western districts of Georgia, and between the Chatahouchie 
and Alabama rivers. 
Flowers August — October. 
17. Decapetalus. 
H. foliis ovatis, acu- 
minatis, remote serra- 
tis, triplinervibus, con- 
coloribus, supra sca- 
bris, subtus pubescen- 
tibus, scabriusculis; in- 
volucri squamis ovato- 
lanceolatis, subaequali- 
bus, ciliatis. 
Leaves ovate, acu- 
minate, remotely ser- 
rate, triplinerved, uni- 
formly coloured, sca- 
brous on the upper sur- 
face, pubescent under- 
neath, slightly sca- 
brous; scales of the in- 
volucrum ovate-lance- 
olate, nearly equal, 
fringed. 
Sp. pi. 3. p. 2241. Pursh, 2. p. 571. Nutt. 2. p. 178. 
Root perennial. Stem three to four feet high, pubescent, scabrous, branch- 
ing. Leaves towards the summit alternate, somewhat spathulate, the peti- 
oles fringed at base. Flowers in terminal panicles, large. Leaves of the 
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