150 COMPOSITE. SoUdago. 



or spatulate to linear-lanceolate, obtuse but mucronate-apiculate : heads commonly in a 

 simple and very narrow virgate panicle of a span or two in length, but not rarely fastigiate 

 compound: rays 5 to 7. — Ait. Kew. iii. 216 (as to the true original, cult., with inflorescence 

 branched): Pursh, Fl. ii. 540; Gray, Proc. Am. Acad. xvii. 182, 192, not of subsequent 

 authors. S. virgata, Michx. Fl. ii. 117; -Ell. Sk. ii. 384; Torr. & Gray, Fl. ii. 201. 5. liiioi- 

 des, Solander, in herb. Banks, not Boott & A. Gray. S. genistoides, Bertol. Misc. Bot. vii. 

 37. — Low and sandy pine barrens. New Jersey to Florida and Louisiana. (Cuba.) 



Var. angustifolia. Gray, 1. c. Leases narrower and the lower longer, all entire; 

 radical mostly lanceolate or narrowly spatulate (4 to 7 inclies long, 4 to 9 lines wide) ; cau- 

 liue lanceolate gradually reduced to sulmlate-linear : clusters of the strict panicle often more 

 racemiform and secund. — S. angnstifolin, Ell. Sk. ii. 388.; Torr. & Gray, ii. 212. Forms in 

 brackish soil not clearly distinguished from the most slender and narrow-leaved 6^ semper- 

 virens. — Carolina to Florida and Texas, along tlie coast. 



S. flavovirens, Cii.hmi. Stem 2 to 6 feet high : radical and lower cauline leaves oblong- 

 ovate or oblong, obtusely serrate, ample (4 to 6 inches long besides the winged petiole) ; 

 upper oblong (gradually reduced to half or quarter inch), all obtuse and yellowish green: 



* inflorescence and heads of the preceding, but the short racemiform clusters at length more 

 spreading and secund: rays few, mostly 3. — Fl. 211. — Florida, in brackish marshes at 

 Apalachicola, Chapman. Robust and largest-leaved specimens of S. stricta seem to pass 

 into this. 



•i— -}— Not maritime, nor alpine, nor canescently pubescent, and leaves not triple-ribbed. Yet in 

 some a pair of stronger priniary veins in the lai-ger lower leaves gives nearly the cliaracter of 

 the TiipUiiervicB, and the Pacific species, iS. lepicla and S. elonyata, referred to the latter, would 

 rather be sought here. — Umcostatm. 



-M- Slender, wholly glabrous and smooth, with naiTow obscurely veined leaves, raylessf 

 S. gracillima, Toke. & Gray. Stem simple or with long and very slender branches, 2 or 

 3 feet high : leaves thickish ; radical and lower cauline spatulate-lanceolate witJi long taper- 

 ing base, 3 or 4 inches long, obscurely serrulate ; upper mostly linear and becoming small, 

 entire : heads comparatively large, 3 lines long, more or less secund in a long and slender 

 and virgate racemiform or sometimes paniculate inflorescence (its apex often recurving) : 

 involucre broad ; its bracts oblong, very obtuse, thickish, mostly greenish at the tip : flowers 

 9 to 12, one sometimes imperfectly ligulate : akenes pubescent. — FL ii. 215; Chapm. Fl. 

 212. — Dry pine barrens. Middle Florida, Chapman, &c. 



■H- -H- Katlier small-leaved, minutely puberulent, but with no other pubescence: leaves not at all 

 triple-ribbed, tlie small upper ones only obscurely venulose : heads (small) in a narrow thyrsoid 

 panicle, never secund. 



S. puberula, Nott. Smooth, the soft puberulence nearly imperceptible to the naked eye : 

 stem rather slender, 2 feet or more high, very leafy, strict : lea-.es obovate and oblongi or 

 the lower (1 to 3 inches long) spatulate, these more or less serrate; upper entire, from 

 oblong to lanceolate : heads crowded on the short branches of the tliyrsus ; involucral bracts 

 subulate-lanceolate: rays small, about 1 : akenes glabrous. — Gen. 162; Torr. & Gray, Fl. ii. 

 202. S. pubescens, EU. Sk. ii. 381. — Sandy ground. New Brunswick (glabrate and ambiguous 

 form) and New England (chiefly along the coast, occiLsionally on the mountains) to Florida 

 and Mississippi. Southward the characteristic minute puberulence is more manifest in 



Var. pulverulenta, Chapm. Almost cinereous-puberulent ; the upper cauline leaves 

 shorter and broader, gradually diminished to half or quarter inch in length. — Fl. 210. 

 , S. pulverulentn, Nutt. 1. c. 161; Ell. 1. c. ; Torr. & Gray, Fl. 1. c. 5. obovaU,, Bertol. Misc. 

 Bot. vii. 36. — Lower Georgia, Alabama, Florida. 



++++++ Obscurely-veined and mainly entire-lea\T..I species; the cauline loaves closely sessile or 

 partly claspmg l)y a broad base, with midrib prominent beneath, but veins and vcinlots usually 

 very mconspicuous: heads (about 2 lines long) crowded in slender .spreading or recurvin.' 

 racemiform and secund clusters, which are all colleeied in .> mostlv short and broad naked 

 terminal panicle: invnlMcrc of narrow and rather obtuse few-ranked bracts: ravs 3 to 5 or rarelv 

 more: disk-flowers hardly more numerous. 



= Leaves all entire and glabrous, smooth, except the margins, usually more or less pellucid- 

 punctate. 



S. Odora, Arr. Stem simple, 2 or 3 feet high, rather slender, often reclining, glabr.ms, or 

 above minutely pubescent in lines: leaves commonly anise-scented when bruised, narrowly 



