630 COMPOSITE. 



ACTINOMERIS, Nutt. 



A. heterophylla, Chapm. Stem mostly simple, hirsute, terete above, 

 winged below ; leaves rough, the lower ones opposite, decurrent, oblong, the 

 upper ones small, linear, remote ; heads single or loosely corymbose ; scales 

 of the involucre lanceolate, shorter than the disk and the 5 -10 linear rays ; 

 chaff of the receptacle rigid, acute, longer than the obovate narrowly winged 

 1 - 2-awned achenia. Low pine barrens, East Florida. Stem 2 - 3 high. 

 Lower leaves 2'- 3' long. 



COREOPSIS, L. 



C. auriculata, L. Stem short (4' -8' high), smooth or sparsely villous, 

 1-2-forking; lower leaves ovate or roundish (l^'-Z long), entire, or with 

 2-4 small lateral lobes, - the length of the slender petiole, the others small 

 and remote ; heads few ; chaff of the receptacle setaceous, twice as long as 

 the flowers ; achenia oblong, incurved, wingless, even, or obscurely papillose. 

 (C. auriculata, var. diversifolia, Ell.) Woods in the upper districts. April 

 and May. 



C. pubescens, Ell. Stem tall (2 high), densely villous, at length much 

 branched; lower leaves lanceolate or oblong (3' -4' long), mostly 3-lobed, as 

 long as the stout petiole, the uppermost ones only entire ; heads very numer- 

 ous ; chaff of the receptacle as long as the flowers ; achenia broadly winged, 

 circular, slightly 2-toothed, plainly papillose on both sides. (C. auriculata, 

 var., Torr 8f Gray.) Mountains of Georgia and Carolina. May to Sep- 

 tember. 



VERBESINA, L. 



V. oncelioides, Benth. Annual, canescent ; stem erect ; leaves ovate 

 or oblong, coarsely serrate, the broadly winged petioles auriculate at the 

 base ; heads somewhat corymbose ; achenia of the disk winged, 2-awned, of 

 the rays wingless, 3-toothed. (Ximenesia encelioides, Cav.) Middle and 

 South Florida. Introduced from Mexico. Stem 2 - 3 high. Flowers 

 yellow. 



PLAVERIA, Juss. 



F. angUStifolia, Pers. Stem woody and much branched at the base, 

 erect ; leaves thick, narrowly lanceolate, acute, remotely serrulate, connate ; 

 corymbs very numerous, compact ; heads 10- 15-flowered, angular, discoid, 

 or with a single oblong entire ray. Sandy beach at Clear Water Harbor, 

 South Florida. October. Stems 2 - 4 high. 



PALAFOXIA, Lag. 



P. Feayi, Gray. Stem woody, slender, widely branched, rough with 

 short rigid hairs ; leave*, ovate or lanceolate, opposite or alternate, ehort- 

 petioled ; corymbs loose ; heads discoid ; achenium sparsely hispid, many 

 times longer than the obtuse denticulate scales of the pappus. South 

 Florida (Feay). Stem 3 -5 high. 



