7. R. speciòsa, Wenderoth. 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--1½´) rays; chaff of the dark purple disk acutish, smooth.--Dry soil, W. Penn. to Mich., Mo., and southward. July. 50. LÉPACHYS, 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 λεπίς, _a scale_, and παχύς, _thick_, from the thickened tips of the chaff.) 1. L. pinnàta, Torr. & Gray. Hoary with minute appressed hairs, slender (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 exhales a pleasant anisate odor when bruised. Achenes slightly margined on the inner edge, obscurely 2-toothed at the top. 2. L. columnàris, Torr. & Gray. Branching from the base, 1--2° high; leaflets 5--9, oblong to narrowly linear, entire or 2--3-cleft; disk columnar, often 1´ long or more; ray as long or shorter, yellow or (var. PULCHÉRRIMA, Torr. & Gray) in part or wholly brown-purple.--Minn. to Tex. 51. BORRÍCHIA, Adans. SEA OX-EYE. Heads many-flowered, radiate; rays fertile. Scales of the hemispherical involucre imbricated. Receptacle flat, covered with lanceolate rigid and persistent 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 _Olof Borrich_, a Danish botanist.) 1. B. frutéscens, 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. HELIÁNTHUS, L. SUNFLOWER. Heads many-flowered, radiate; rays several or many, neutral. Involucre imbricated, herbaceous or foliaceous. Receptacle flat or convex; the persistent 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 intermediate scales.--Coarse and stout herbs, with solitary or corymbed heads, and yellow rays; flowering toward autumn. (Named from ἥλιος, _the sun_, and ἄνθος, _a flower_.)