COMPOSITE. 177 



1. C. mariana Nutt.: hairy; leaves oblong, lanceolate, serrate; the 

 upper ones sessile, acute ; the lower ones spathulate and generally ob- 

 tuse ; corymb simple ; involucre viscidly pubescent. Inula mariana 

 Linn. 



HAB. Sandy woods. N. J. to Car. Aug. Oct. If. Stem I 2 

 feet high, clothed with long hairs. Flowers in corymbs ; florets 

 of the ray 16 20. 



2. C. falcata Beck : woolly and villous ; leaves sessile, linear, very 

 acute, subfalcate and spreading ; nerves pilose on both sides ; flowers 

 in axillary corymbs ; involucre pilose. Inula falcata Pursh. 



HAB. Pine woods. N. J. Sept., Oct. If.. Stem 612 inches 

 high. Flowers in crowded corymbs, small, bright yellow. Ray 

 florets oblong, tridentate. Mr. Nuttall supposes this species to 

 be a mere variety of the preceding. 



3. C. graminifolia Nutt. : silky ; stem leafy towards the summit ; 

 leaves linear-lanceolate, acute, entire, nerved ; corymb compound. 

 Inula graminifolia Mich. 



HAB. Sandy woods. Del. to Flor. Aug. Oct. !. Stem 12 

 feet high and with the leaves covered with a silky pubescence. 

 Leaves long, linear. Corymb made up of many heads. Flow- 

 ers yellow. Closely allied to C. argentca of Elliott, but the 

 leaves are conspicuously nerved, the corymbs generally more 

 compact and the heads more numerous. The three species above 

 described, differ so much in habit from Inula helenium, as to war- 

 rant their separation ; a suggestion first made by Mr. Nuttalr,. 

 and subsequently adopted by Mr. Elliott. But it is doubtful 

 whether the range of the genus is so extensive as we should be 

 led to infer from the remarks of Mr. Nuttall. 



21. ARNICA. Linn. 



Involucre hemispherical, with the leafets equal and longer 

 than the disk. 'Receptacle, naked. Pappus simple. Florets 

 of the ray often with 5 filaments destitute of anthers, (yel- 

 low.) Syngenesia. Supcrflua. 



A. nudicaulis Nutt. : hirsute ; radicle leaves opposite, decussate, 

 broad-lanceolate, nerved and toothed ; stem nearly leafless, divided 

 near the summit into a few 1 -flowered branches. A. elaytoni Pursh. 

 Doronicum nudicaule Mich. 



HAB, Pine barrens. Penn. to Car, July, Aug. 2_. Stem 2 3 

 feet high, simple, hirsute, somewhat viscid. Leaves of the root 

 large, spreading, strongly nerved. Flowers large, yellow. 



Leopard? s-banc* 



22. GNAPHAUUM. Linn. 



Involucre imbricate, with the scales membraneous and often 

 coloured. Receptacle naked. Florets of the ray subulate ; 

 some of the disk occasionally abortive. Pappus rough. 



Syngenesia. Superflua. 



