630 COMPOSITJE.' 



r 



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 coryaibose; scales 

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

 chafE 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 (1^'- 2' long), entire, or with 

 2-4 small lateral lobes, ^ - J 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.) — \Yoods 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 Sf Gray.) — Mountains of Georgia and Carolina. May to Sep- 

 tember. 



VERBESINA, L. 



V. encelioides, 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. 



FLAVERIA, Juss. 



F. angustifolia. Pars. 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. 



PALAPOXIA, Lag. 



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

 short rigid hairs ; leaver ovate or lanceolate, opposite or alternate, short- 

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

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

 Florida (Feay). — Stem i°-b° high. 



