Order 70.— COMPOSITE. 463 



4 C. diversifdlia Torr. & Gr. Plant not glaucous; si. striaie-angled ; lower lvs. 

 ovate, obtuse, repand-toothcd, upper 3 to 5-lobed, somewhat hastate; hds., corymbs 

 and rls. as in the preceding (of which it seems to be a variety). — Swamps along 

 the Chattahoochie, FJa. Plant 2 to 3f high. May. 



5 C. tuberosa Nutt. St. angular-sulcate; Ivs. oval or ovate, strongly 5 to 7- 

 veined, obtuse or subacute, entiro or repand-denticulate, not glacous, lower ones 

 tapering into long petioles, upper ones on short petioles ; hds. in compound cor- 

 ymbs. — Marshes, W. States. St. 2 to 5f high, branched above. Lvs. rather thick, 



3 to T long, % as wide, veins converging to tho apex. Hds. oblong, 5-leavcd and 

 5-flowered, white. May. — Jl. 



S C. ovata Ell. St. terete; lvs. glaucous beneath, 3 to 5-veined, ovate and oval, 

 entire or undulate-margjned, contracted at base into petioles; corymb fastigiate. — 

 Macon, Ga. (Mettauer), Ala., Fla., in moist woods. St. smooth, glaucous, 3 to 4f 

 high. Lower lvs. on long petioles, rather obtuse; upper ones nearly sessile, 

 rather acute. Scales broad-linear, acuto. Jl. — Aug. 



7 C. lanceolata Nutt. St. terete; lvs. glaucous beneath, 3- veined, lanceolate and 

 lance-linear, entire or with few sharp teeth, lower tapering to petioles, upper 

 sessile; corymb simple. — Wet grounds, Ga. Ela. St. 4 to 6f high. Lvs. below 



4 to 6 long, diminishing upwards. Scales linear, acute. Aug., Sept. 



8 C. coccinea Curt. Tassel Flower. Radical lvs. ovate-spatulate, cauline 

 amplexicaul crenate ; invoL ovate-cylindric, scales linear, at length reflexod ; ach. 

 ciliate; pappus in several rows. — A. pretty garden flower, native of the E. Ind., 

 &c. St. If or more high. Fls. bright scarlet. Jn. — Sept. A bed or patch sown 

 thickly makes a flue appearance. (Emilia sagittata, DC.) 



85. CINERARIA, Less. (Lat. cinereus, ash-colored ; for its soft, 

 white down.) — lids, radiate; rays pistillate; invol. scales in one row, 

 iscarious on the margin; recept. naked, flat; ach. bealcless, decom- 

 pressed; papp. capillary. — Greenhouse shrubs with mostly alternate 

 leaves. 



1 C. arnelloides Willd. Leaves opposite, ovate, smooth; peduncles each 

 bearing a single head with blue rays. — Shrubby, 2 to 3f high. \ S. Africa. 



2 C. speciosa Schrad. Lvs. alternate, rtniform, denticulate, on inflated 

 petioles ; hds. in a simple raceme terminating the simple stem, with yellow rays. 

 — Shrub 4 to 6f high, f Siberia. 



S discolor Willd. Lvs. alternate, oblong-lanceolate, acuminate, denticulate, 

 smooth, white beneath; hds. corymbous, with yellow rays. — Shrub 3* to 4f high. 

 \ Jamaica. 



4 C. laaata Willd. Lvs. roundish, 7-angled, cordate, woolly beneath; hds. 

 solitary on each peduncle; rays white within, of a vivid purple outside. — j Ca- 

 naries. Very beautiful. 



5 C. populifolia H. K. Lvs. somewhat angular, cordate, downy beneath, tho 

 petioles appendaged; hds. corymbous; rays red. — The florists have produced 

 many hybrids of superior beauty; as the Rosy Mom, Jenny Lind, Vicar of Wake- 

 fidd, &c. 



88. SENE'CIO, L. Groundsel. (Lat. sencx, an old man ; the word 

 is synonymous with Erigeron.) Involucre of many equal scales or 

 invested with a few shorter ones at base; flowers all tubular, «, or 

 usually radiate and rays ? ; receptacle not chaffy ; pappus simple, cap- 

 illary and copious. — A vast genus embracing 6u0 species of herbs and 

 shrubs. Lvs. alternate. Fls. mostly yellow, exceeding the invol. 



§ Heads discoid. Root annual No. 1 



§ Heads radiate.— Radical leaves undivided. Aehenia glabrous Nos. 2, 3 



— Radical leaves undivided. Acbenia pubescent Nos. 4, 5 



— Radical leaves divided, as well as the cauline Nos. 6—3 



1 S. vulgaris L. St. paniculate, erect, angular; lvs. sinuate-pinnatifid, dentate, 

 amplexicaul. — A weed growing about houses, in waste grounds, rubbish, &c 

 N. States. St. 18' high, leafy, branching, generally smooth. Lvs. alternate, thin, 



