ORDER 70. COMPOSITE. 187 



1 C. suaveolens L. Glabrous ; et. striate-angular ; Ivs. on winged petioles, hastate* 



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



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



green, petiolate, lower reniform, upper flabelliform. 11 Woods, 111. to Car. 3 6f. Jl. 



3 C. atrlpllcifolia 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. ii Swamps, Fla. 2 3f. May + . 



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



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

 G C ova.ta Ell. St. terete ; Ivs. glaucous beneath, 3-5-veined, ovate and oval, entire or 

 undulate-margined, contracted at base into petioles. ii Swamps, S. 3 4f. July+. 



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



linear, the lower tapering to petioles, upper sessile ; corymb simple. 11 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, 5., 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. Achenia 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. vulgar is L. St. paniculate, erect, angular; Ivs. sinuate-phmatifid, dentate, am 



plexicaul. (J) 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. eubumbellate, thick ; 

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



ft. Ilalxdmitar. Pubescent ; Ivs. few, small, the radical Ian ce-oblong. Rocks. 



y. g-rdctlig. Root Ivs. roundish, on long petioles, cauline linear-oblong, dentate. 



6. oliovhtuH, Root leaves obovate to oblong-spatulate ; peduncles long. 



r. lanceolatu*. Lvs. lanceolate, the cauline pinnatifid at base. Vt. Rare. 



. dificoitteus (Porter). Rays none ; Ivs. obov.-spatulate, cauline pinnatifid. Penn. 



3 S. obovatus Ell. Tomeutous, becoming glabrous ; root Ivs. obovate or roundish, 



crenate, with an attenuated, sessile base ; cauline few, small, cut-pinnato ; corymb 

 small, rays 10 12, spreading 1'. u Va. to Fla. If. Stem nearly leafless. May. 



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



long-pet ioled, crenate, upper sessile or none ; rays 12 15, spreading 16". 11 Va. & S. 



5 S. aiiomymus Wood. Cottony-tomentous; root Ivs. oblong, obtuse, crenately 



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

 ing 6". it Thickets, Ala. (Montgomery). 2f. Corymbs compound. May, June. 



6 S. Canadensls L. Lvs. glabrous, bipinnatifid ; peg. lobed, obtuse, the few nppe-r 



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



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



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



8 S. ELEGANS. Purple Jacobcea. Lvs. pinnatifid, hairy, viscid ; scales scarious 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- 

 side, wh. outside; disk white or blue, y Canaries. 3f. Shrubby. Many varieties. 



