COMPOSITE.. (COMPOSITK FAMILY.) 277 



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

 pcduncled, smaller than in tlie preceding, the rays fewer and broader. — Pine 

 woods, Va. to Tenn., and southward. 



7. R. speci6sa, \Ven<leroth. Koughish-hairy (1-2° high), branched; 

 the branches u])right, elongated and naked above, terminated by single largo 

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

 uerved, coarsely and unexpiatlji toothed or incised ; involucre much shorter than 

 the numerous elongated (1 - \\') rays; chaff of tlic dark purple disk acntish, 

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



50. LEPACHYS, Kaf. 

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

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

 tliickened and bearded at the tip. partly embracing tlie flattened and margined 

 achenes. Pappus none or 2 teeth. — Perennial herbs, with alternate ])innately 

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

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

 from Aeirts, a scale, and iraxvs, thick, from the thickened tips of the cliaff.) 



1. L. pinn^ta, 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 w^hen bruised. Achenes slightly margined on 

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



2. L. COlumn^ris, 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. pulchekkima, 

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



51. BORRICHIA, Adans. Sea Ox-eye. 



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

 involucre imbricated. Keceptacle flat, covered w^ith 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 pedunded terminal heads of yellow 

 flowers; anthers blackish. (Named for Olof 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 NTH US, L. Sunflower. 

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

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

 ent chaff eml)racing the 4-sided and laterally compressed smooth achenes, 

 which are neitlier 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 hcrl)s, with solitary or corymbed heads, and 

 yellow rays; flowering toward autumn. (Named from riXios, the sun, and 

 HlvBos, ajiower.) 



