172 DICOTYLEDONOUS. 



the disk perfect, 4-cleft, those of the ray pistillate ; pappus 

 wanting ; receptacle bristly. 



1. E. Ekecta. Stem erect, strigose ; dichotomous. Leaves opposite, lan- 

 ceolate, serrate, or entire, attenuate at the base, 3 nerved, sessile. Flowers 

 on long peduncles in pairs ; involucre with ovate, acuminate leaves. 



White. June — July. Gravelly soils. 



2. E. Procumbens. Stein procumbent, assurgent, terete, with numerous 

 opposite branches, with appressed hairs. Leaves sessile, opposite, lanceolate, 

 narrowed at the base, 3-nerved ; involucre with acute lanceolate leaves. 

 Flowers on peduncles, generally in pairs; involucre with 8-10 leaves, lance- 

 olate, ciliate, unequal ; ray florets numerous, 2-toothed. 



White. © June — Oct. Damp soils- Common. 12-18 in. 



3. E, Brachypoda. Stem prostrate, divaricately branched. Leaves lan- 

 ceolate, slightly serrulate. Flowers on short peduncles, solitary or in pairs ; 

 involucre with oval lanceolate leaves ; florets 4-5 cleft. 



White. <v> July — Sept. Sandy soils. 



Gexus XXIII. BUPHATHALMUM. 



Involucre many leaved ; florets of the disk 5-cleft, perfect, 

 numerous, those of the ray pistillate. Seeds winded. Pap- 

 pus 4-toothed, or an obsolete margin. Heceptacle chaffy. 



1. B. Frutescens. Stem erect, glabrous, branching, pubescent towards 

 the summit. Leuves opposite, sessile, cuneate, lanceolate, glaucous, sparing- 

 ly toothed at the base. Flotcers solitary, terminal; involucre many leaved, 

 imbricate. Leaves mucronate, expanding; ray florets lanceolate, 10-12. 

 Seeds of the my triangular; pappus 4-toothed ; chaffpubescentjwithastiflTpoint. 



Yellow, fi or % June — Oct. On the sea coast. 



2. B. AxGUSTiFOLiuM. Stem erect, branching. Leaves alternate, linear, 

 entire, glabrous ; involucre with acute, lanceolate leaves. 



Yellow, ?2 or 1[- July— Sept. Southern Ga. and Florida. 



Gents XXIV. GYMNOSTYLES. 



Involucre many leaved. Flowers of the circumference 

 sterile, of the center fertile ; fertile florets apetalous. Sta- 

 mens none; sterile florets with the corolla funnel shaped, 

 slender. Seeds compressed. Pappus a winged margin, 

 toothed. Receptacle naked. 



1. G. Stolonifera. Stem glabrous, creeping. Leaves pinnatifld, with lin- 

 ear, and sometimes toothed segments, somewhat succulent, sprinkled with 

 soft pubescence, tapering into a long base ; all radicle. Floicers sessile at 

 the root ; involucre with oblong hairy leaflets, in a single series. Seed termi- 

 nated by the persistent stile, enlarged at the summit. 

 % Feb. — May. Damp soils. Low country. 



Ge.\us XXV. ELEPHANTOPUS. 



Involucre 4.fiowered ; florets all ligulate, perfect. Pappus 

 bristly, consisting of 5 awns. Receptacle naked. 



1. E. Carolinianus. Ste7n leafy, erect, terete, branching towards the sum- 

 mit, villous. Leaves oblong, attenuate at the base, hairy, slightly scabrous. 

 Flowers in sessile, terminal clusters, -svith 3 unequal cordate bracts at the 

 base of each capitulum; involucre 9-10 leaved, the interior longest, hairy 



