COMPOSITE. 181 



ceolate, acuminate at each end, distinctly petioled, membranaceous, coarsely 

 serrate ; corymb fastigiate, somewhat paniculate ; scales of the involucre 

 smoothish, dotted with minute glands. Conyza camphwata Pursh. Dae- 

 charis fcetida Linn. 



Wet banks. Penn. ? to Ala. and Ken. Aug. Oct. f l\.. Stem 24 feet 

 high, grooved or angled. The leaves are much larger, the heads more numerous, 

 and the odor is more powerful,than in the preceding. Fetid Marsh Fteabane. 



22. INULA. Linn. Elecampane. 



(Origin doubtful.) 



Heads many-flowered ; ray flowers in a single series, pistillate, 

 sometimes infertile, ligulate, rarely tubular ; those of the disk 

 tubular, perfect. Involucre imbricate, in many series. Recep- 

 tacle flat or somewhat convex, naked. Anthers with 2 bristles 

 at base. Pappus capillary, roughish. 



/. Helenium Linn. : leaves toothed, acute, velvety tomentose beneath ; the 

 radical ones ovate, tapering into a petiole j the cauline somewhat clasping ; 

 heads few, pedunculate, corymbose. 



Road sides. N. S. July, Aug. 1\.. Stem 3 i feet high, branching at the 

 top. Leaves very large. Heads large, solitary, on long terminal thick pedun 

 cles, yellow ; rays numerous, linear, 3-toothed. Introduced from Europe. 



Common Elecampane. 



23. ECLIPTA. Linn. Eclipta. 



(From the Greek cvAeiTru, to be deficient ; in allusion to its wingless achenia, 

 by which it is distinguished from Verbesina. Eat. Man.) 



Heads many-flowered ; ray flowers in one series, pistillate, 

 ligulate, very narrow and short ; those of the disk tubular and 

 perfect. Receptacle flattish, furnished with linear filiform chaff, 

 as long as the achenia. Involucre in two series; the scales 

 10 12, ovate-lanceolate, acuminate. Achenia of the ray 

 3 -sided; of the disk compressed at the sides, muricate-tuber- 

 cular, somewhat hairy at the summit. Pappus none, or of 

 1 3 minute teeth. 



E. erccta Linn.: stem erect or ascending, appressed-strigose ; leaves 

 oblong-lanceolate, acuminate at both ends, slightly serrate ; pedicels solitary 

 or in pairs, several times as long as the head. E. procumbens Mich. Ver- 

 besina alba Linn. 



Damp sandy soil. Md. to Flor. W. to Ken. and Louis. June Oct. (1). 

 Stem 1 3 feet long, often rooting at base. Heads small. E. brachypoda Mich. 

 is a variety with the pedicels about as long as the heads. A very widely dif- 

 fused species. Upright Eclipta. 



