SENECIO. LXXV. COMPOSIT. 347 
47. VERBESINA. ' 
Heads few or many-flowered ; rays 2, few or 0; disk $; scales in 
2 or more series, imbricated, erect ; chaff concave or embracing the 
flowers ; achenia compressed laterally, 2-awned.—% American plants, 
sometimes shrubby. Lvs. oflen decurrent, serrate or lobed. ds. solitary 
or corymbose. 
1. V. Srecespeckra. Michx. (Coreopsis alata. Ph. Actinomeris alata. 
Nutt.)—St. 4-winged ; lvs. opposite, ovate or lance-ovate, serrate, acumi- 
nate, tripli-veined, tapering to a winged petiole; fds. radiate, in trichotomous 
cymes; rays 1—5; ach. wingless.—Roadsides and dry fields, Western and South- 
ern States, common. Stem 4—6f high. Leaves 5—8’ by 34’, thin. Heads 
about 25-flowered, with yellow corollas and yellow, lanceolate rays, the latter 
about 2?’ long. Aug. Sept. 
2. V. Virainica. Virginian Crown-beard. 
St. narrowly winged, pubescent above; /vs. alternate, lanceolate or lance- 
ovate, subserrate, scabrous, acute or acuminate, tapering to the sessile base; 
lower ones decurrent ; corymbs compound, dense ; rays (oval) and disk fls. white ; 
ach. winged.—Dry woods, Penn. to La. Stem (3—5f high) and leaves beneath 
often more or less tomentose. Heads about 20-flowered, the 3 or 4 rays scarce- 
ly 3’ long. Aug. Sept. . 
48. DYSODIA. Cav. 
Heads many-flowered; rays Q; disk c; involucre of a single series 
of partially united scales, usually calyculate; achenia elongated, 4- 
angled, compressed; pappus scales chaffy, in one series, fimbriately 
and palmately cleft into bristles —@® Lvs. mostly opposite and pinnate- 
ly parted or toothed. Hds. paniculate or corymbose. Fis. yellow. 
D. cHRYSANTHEMOIDES. Lagasca. (Tagetes papposa. Vent. Boebera chr. 
Willd.) —St. glabrous, much branched; lvs. pinnately parted, lobes linear, 
toothed; Ads. terminal; scales campanulate, united at base ; bracts at base 7—9, 
linear ; pappus bristles slender, as long as the involucre—Prairies, &c., Ill., Mo. 
to La. An ill-scented plant, above 1f high, resembling a Tagetes. Flowers 
bright yellow. 
49. SENECIO. 
Lat. senez, an old man; the word is synonymous with Erigeron. 
Involucre of many equal leaflets or invested with scales at base, 
the scales withered at the points; receptacle not chaffy; pappus 
simple, capillary and copious.— A vast genus, embracing 600 species of 
herbs and shrubs. Lvs. alternate. ls. mostly yellow, exceeding the 
anvolucre. 
* Heads discoid. 
1. S. vuteairis. Common Groundsel. 
St. paniculate, erect, angular; vs. sinuate-pinnatifid, dentate, amplexi- 
ceaul.—A common weed growing about houses, in waste grounds, rubbish, &c. 
Introduced from Europe. Stem 18’ high, leafy, branching, generally smooth. 
Leaves alternate, thin, bright green, the radical ones stalked. Flowers without 
rays, terminal, scattered, yellow, appearing all summer. § 
* Heads radiate. 
2. S. aureus. Golden Senecio. 
Radical lvs. ovate, cordate, crenate-serrate, petiolate, cauline ones pinnati- 
fid, dentate, terminal segments lanceolate; ped. subumbellate, thick; rays 8—12. 
— A handsome and very variable plant, in meadows, woods, &c. (U.S. and 
Brit. Am.) with golden-yellow flowers. Stem smoothish, striate, erect, 1—2f 
high, simple or branched above, terminating in a kind of umbellate, simple or 
compound corymb. Lower stem leaves lyrate, upper ones few and slender 
ot 
