422 
SlfNGENESIA FRUSTRANEA, 
terminating the branches. Leaves of the involucrum lanceoiate, with taper- 
ing subulate summits, about as long as the disk. Florets of the ray ten to 
twelve? yellow, about an inch long, pubescent, slightly emarginate; of the 
disk numerous. Seed four-angled, rather long. Pappus subulate, pubes- 
cent. Chaff of the receptacle not as long as the florets of the disk, acumi- 
nate, very hispid just below the summit. 
I have a variety of this plant differing with narrower, oval-lanceolate 
leaves, and very prominent serratures. 
To the H. Macrophyllus of Willd. this plant appears to bear a strong 
resemblance. But Pursh places that species, with which I am unacquainted, 
among those with alternate leaves, while in this plant they are uniformly 
opposite. The size of the leaves would hardly justify Willdenow’s specific 
name. 
Grows in the western districts of Georgia. 
Flowers August to October. 
12. Tricuspis. E. 
Leaves opposite, ob- 
long, ovate-lanceolate, 
scabrous on both sur- 
faces; scales of the in- 
voluerum broad subu- 
late, ciliate; chaff of 
the receptacle 3-cuspi- 
date. 
Root perennial. Stem three to four feet high, and with the whole plant 
very scabrous, branches and leaves very regularly opposite. Leaves much 
whitened on the upper surface by the blistered epidermis; of a dull uniform 
brown colour, though very scabrous underneath, triplinerved, with the mar- 
gins revolute, nearly entire. Flowers few, terminating the branches. Invo - 
lucrim many leaved, leaves subulate, wide at base, the interior rather longer. 
Florets of the ray fourteen to sixteen, about one and a half inches long, yel- 
low. Stamens longer than the florets of the disk. Seed compressed. Pap~ 
pus nearly as long as the seed, subulate, lacerate. Chaff of the receptacle 
tricuspidate, the middle segment the largest and somewhat acuminate. 
This plant in its artificial character resembles much the H. Decapetalus, 
but it is a much harsher and coarser plant, and its opposite leaves and 
branches also distinguish it. The chaff of the receptacle is more deeply 
three-cleft than in any other species which I have examined. To the H. 
Scaberrimus it is much more nearly allied. 
Grows in the western districts of Georgia. , 
Flowers September— October, 
H. foliis oppositis, 
oblongis, ovato-lance- 
olatis, utrinque scabris; 
involucri squamis lato- 
subulatis, ciliatis; re- 
ceptaculi paleis trieus- 
pidatis. 
