422 SYNGENESIA FRUSTRANEA 



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terminatinjEf the branches. Leaves of the involuciura lanceolate, 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. Chaflfof 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 IL 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. 



h 



^ 



H. foliis oppositis, I LeaveiS opposite, ob- 

 oblongis, ovato-lance- | long, ovate-lanceolate, 



scabrous on both sur- 

 faces; scales of the in- 



olatis, utrinque scabris; 

 involucri squamis lato- 

 subulatis, ciliatis: re- 



volucrurn broad subu- 

 ceptaculi paleis tricus- j late, ciHate; chaff of 

 pidatis, I the receptacle 3-cuspi- 



date. 



Root perenniaK Stem three to four feet high, and with the whole plant 



xtty scabrousj branches and iea\'es very regularly opposite. Leaves rniKii 

 whitened on the upper surfade by thf* blistered epidermis; of a dull umtorm 

 brown colour, though very scabrous uadernealh, triplinerved, with the rnar- 

 gins revolute, nearly entire. Flatters kwy terminating the branches* Jfli^o- 

 lucrum many leaved, leaves subulate, wide at base, the interior rather Icfflg^^* 

 Florets of the ray fourteen to sixteen, about one and a half inches long, J'^^* 

 low. Stamens longer than the florets of the disk. Seed compressed. P^P' 

 pm nearly as long as the seed, subulate, lacerate. Chaff of the receptacle 

 ti'icuspidate, the middle segment the largest and somewhat acuminate. 



This plant in its artificial character resembles much the H. Decapetalu5, 

 but it is a much harsher and coarser plant, and its opposite leaves ana 

 branches also distinguish it. The ch&ff of the receptacle is more deeply 

 three-cleft than in any other species which I have examhied. To the li- 

 Scaberrimus it is much more nearly allied. 



Orows in the western districts of Georgia. 



Flowers September — October. 



