ORDER 70. COMPOSITES. 187 



1 C. suaveoleiis L. Glabrous ; st. etriate-angular ; Ivs. on winged petioles, hastate- 



sagittate, dentate, green on both sides ; fls. white. 2f Ct., W. and S. : rare. 4 5f. Aug. 



2 C. reiiiformis Muhl. St. sulcate-angled ; Ivs. palmately-veined, nearly smooth, 



green, petiolate, lower reniform, upper flabelliform. ii Woods, 111. to Car. 3 6f. Jl. 



3 C. atriplicifolia L. St. terete ; Ivs. petiolate, smooth, glaucous beneath, palmate- 



veined, angularly-lobed and dentate, the lower subcordate. N. Y., S. and W. 3-5f. Jl. 



4 C. diversifolia T. & G. Not glaucous ; st. striate-angled ; lower Ivs. cordate-ovate, 



obtuse, repand-dentate, upper 3-5-lobed, subhastate. li Swamps, Fla. 2 3f. May + . 



5 C. tuberosa N. St. angular-sulcate ; Ivs. oval or ovate, strongly 5-7-veined, not 



glaucous, petiolate, lower petioles very long. ii Swamps, W. and S. 2 5f. May Jl, 



ft C ovata Ell. St. terete ; Ivs. glaucous beneath, 3-5-veined, ovate and oval, entire or 



undulate-margined, contracted at base into petioles, y. Swamps, S. 3 4f. Julyf. 



7 C. lanceolata N. St. terete ; Ivs. 3-veined, glaucous beneath, lanceolate to lance- 



linear, the lower tapering to petioles, upper sessile ; corymb simple. ii Ga. Fla. 5f. 



8 C. COCCINEA. Tassel-flower. Root leaves ovate-spatulate, cauline clasping-auriculate ; 



invol. much shorter than the scarlet fls., finally reflexed. E. Ind. 1 2f. June Sept. 



87. SENECIO, L. GROUNDSEL. Invol. of many equal scales, or in- 

 vested with a few shorter ones at base. Fls. all tubular, $ , or usually radi- 

 ate and rays ? . Recep. not chaffy. Pap. simple, capillary and copious. 

 A vast genus of herbs and shrubs. Lvs. alternate. Fls. mostly yellow, 

 exceeding the invol. Fig. 160. 



Rays none. Root annual. (A perennial climber, No. 11.) No. 1 



Rays yellow. a Radical leaves undivided. Achenfa glabrous Nos. 2, 3 



a Radical leaves undivided. Achenia pubescent Nos. 4, 5 



a Radical leaves divided, as well as the cauline Nos. 6, 7 



Rays purple, &c. Species of Cineraria, L. &c. in the greenhouse Nos. 810 



1 S. "vulgaris L. St. paniculate, erect, angular; Ivs. sinuate-pinnatifid, dentate, am 



plexicaul. (T) A weed in gardens, &c. If. 18'. Flowers all Summer. 



2 S. aureus L. Radical Ivs. ovate, cordate, crenate-serrate, petiolate, cauline ones 



lyrate-pinnatifid, dentate, terminal segments lanceolate ; ped. subumbellate, thick ; 

 rays 812 ; fr. glabrous, it Woods, meadows. 1 2f. Rays spread 1'. May Aug. 



. Jlalsdniilar. Pubescent ; Ivs. few, small, the radical lance-oblong. Rocks. 



y. g-rdcilis. Root Ivs. roundish, on long petioles, cauliue linear-oblong, dentate. 



5. ohotatnti. Root leaves obovate to oblong-spatulate ; peduncles long. 



F, lanceolatug. Lvs. lanceolate, the cauline pinnatifid at base. Vt. Rare. 



. tliscoideu* (Porter). Rays none ; Ivs. obov.-spatulate, cauline piunatifid. Penn. 

 8 S. o I) o vat us Ell. Tomentou?, becoming glabrous ; root Ivs. obovate or roundish, 

 crenate, with an attenuated, sessile base; cauline few, small, cut-pinnate; corymli 

 small, rays 10 12, spreading 1'. n Va. to Fla. If. Stem nearly leaile-ss. May. 



4 S. tomentosus MX. Cottony-tomentous ; st. Ivs. obovate to oblanceolate, obtus-;, 



long-petioled, orenate, upper sessile or none ; rays 12 15, spreading If5". ti Va. & S. 



5 S. aii6nymuw Wood. Cottony-tomentous; root Ivs. oblong, obtuse, crenalely 



toothed or lobed, cauline pinnatifid, the lobes dentate ; hds. small, rays 69, spread- 

 ing 6". 71 Thicket's, Ala. (Montgomery). 2f. Corymbs compound. May, June. 

 B S. Canadensis L. Lvs. glabrous, bipinnatifid; seg. lobed, obtuse, the few npitM 

 pinnatifid ; corymbs compound ; rays 9 ,2. 11 Canada (Kalm), Mts. N. Car. 



7 S. lobatus Pers. Butterweed. Glabrous ; leaves all pinnatifid, the lower lyrately, 



lobes crenate : invol. subcalyculate ; rays 10 12. (I) Wet. S. : com. 2 3f. Mar. Apr. 



8 S. ELEGANS. Purple Jacobcea. Lvs. pinnatifld, hairy, viscid; scales scarions at tip, 



calyculate with an outer row of short green ones. (T) S. Afr. Purp., varying to white. 

 S. LANATA. Lvs. roundish, angular, cordate, woolly beneath ; rays vivid purple in 

 Bide, wh. outside; disk white or blue. 2f Canaries. 3f. Shrubby. Many var'otion. 



