COMPOSITE. (COMPOSITE FAMILY.) 277 



sometimes all lanceolate or oblanceolate to linear, denticulate; heads long, 

 peduncled, smaller than in the preceding, the rays fewer and broader. Pine 

 woods, Ya. to Tenn., and southward. 



7. R. speciosa, Wencleroth. Roughish-hairy (1-2 high), branched ; 

 the branches upright, elongated and naked above, terminated by single large 

 heads; leaves lanceolate or ovate-lanceolate, pointed at both ends, petioled, 3-5- 

 nerved, coarsely and unequally toothed or incised ; involucre much shorter than 

 the numerous elongated (1 - 1^') rays; chaff of the dark purple disk acutish, 

 smooth. Dry soil, W. Penn. to Mich., Mo., and southward. July. 



50. LEPACHYS, Raf. 



Heads many-flowered, radiate ; the rays few, neutral. Involucral scales few 

 and small, spreading. Receptacle oblong or columnar; the chaff truncate, 

 thickened and bearded at the tip, partly embracing the flattened and margined 

 achenes. Pappus none or 2 teeth. Perennial herbs, with alternate pinnately 

 divided leaves ; the grooved stems or branches naked above, bearing single 

 showy heads. Rays yellow or party-colored, drooping; disk grayish. (Name 

 from \eiris, a scale, and iraxvs, thick, from the thickened tips of the chaff.) 



1. L. pinnata, Torr. & Gray. Hoary with minute appressed hairs, slen- 

 der (4 high), branching; leaflets 3-7, lanceolate, acute; disk oblong, much 

 shorter than the large and drooping light-yellow rays (which are 2' long). 

 Dry soil, western N. Y. to Minn., and southward. July. The receptacle ex- 

 hales a pleasant anisate odor when bruised. Achenes slightly margined on 

 the inner edge, obscurely 2-toothed at the top. 



2. L. column aris, Torr. & Gray. Branching from the base, 1 - 2 high ; 

 leaflets 5-9, oblong to narrowly linear, entire or 2-3-cleft; disk columnar, 

 often V long or more ; ray as long or shorter, yellow or (var. PULCHERRIMA, 

 Torr. & Gray) in part or wholly brown-purple. Minn, to Tex. 



51. BORRICHIA, Adans. SEA OX-ETE. 



Heads many-flowered, radiate ; rays fertile. Scales of the hemispherical 

 involucre imbricated. Receptacle flat, covered with lanceolate rigid and per- 

 sistent chaff. Achenes somewhat wedge-shaped, 3-4-angled ; pappus a short 

 4-toothed crown. Shrubby low maritime plants, coriaceous or fleshy, with 

 opposite nearly entire leaves, and solitary peduncled terminal heads of yellow 

 flowers; anthers blackish. (Named for 0/of Borrich, a Danish botanist.) 



1. B. frutescens, DC. Whitened with a minute silky pubescence (6'- 

 3 high) ; leaves obovate to spatulate-oblong or lanceolate, often toothed near 

 the base ; chaff rigidly pointed. Va. and southward. 



52. HE LI A NT HITS, L. SUNFLOWER. 



Heads many-flowered, radiate ; rays several or many, neutral. Involucre 

 imbricated, herbaceous or foliaceous. Receptacle flat or convex ; the persist- 

 ent chaff embracing the 4-sided and laterally compressed smooth achenes, 

 which are neither winged nor margined. Pappus very deciduous, of 2 thin 

 chaffy scales on the principal angles, and sometimes 2 or more small interme- 

 diate scales. Coarse and stout herbs, with solitary or corymbed heads, and 

 yellow rays ; flowering toward autumn. (Named from T}AJOS, the sun, and 

 6.v8os, afloiver.) 



