Coreopsis
(from koris, a bug, and opsis, like; referring to the appearance of the seed). ORD. Compositae. A genus of showy annual or perennial herbaceous plants. Involucral bracts in two rows, the outer spreading, and the inner combined at the base and erect; receptacle furnished with linear chaffy scales. Leaves opposite, simple, or sub-pinnate. Seeds flat on one side, convex on the other, membranous at the edge, and the pappus with two horns. Several species of this genus are very handsome, having a distinct, bright-coloured disk. The hardy annuals are largely grown, under the name of Calliopsis, for summer ornamentation; for which purpose seed should be sown in March, in a gentle heat, or outside late in April. The perennials are also of easy culture in ordinary garden soil, and may be propagated by divisions of the root, in autumn or spring; or, during the summer, by young cuttings, which will strike freely in a cold frame. Annuals, except where otherwise mentioned. C. aristosa (bearded). fl. heads orange-yellow, large, numerously produced in a terminal panicle. September. l. deeply pinnatifid, with coarse, lanceolate segments, glabrous, much branched. h. 3ft. United States, 1869. C. aurea (golden). fl.-heads with golden-yellow rays; disk-flowers dull yellow. Autumn. l. various, more commonly three to seven-divided, with lanceolate divisions. h. 1ft. to 3ft. United States. A glabrous biennial. C. auriculata (auricled).* fl.-heads yellow, with a band of purplish-brown encircling the disk, generally solitary; peduncles very long and slender. Summer. l. entire, or sometimes three-lobed. h. 1ft. to 1 1/2ft. United States, 1699. Perennial.
C. bicolor. A synonym of C. tinctoria.
C. cardaminefolia (Cardamine-leaved). fl.-heads yellow; lower part of ray-florets brown-purple. Summer. l. once or twice pinnately divided. h. 6in. to 2ft. United States.
C. coronata (crowned). fl.-heads orange, spotted with brownish-purple; peduncles elongated. Summer, autumn. l. opposite, in remote pairs, spathulate, tapering at base, undivided, or cut in a pinnated manner. Stem erect. h. 2ft. Texas, 1835. (B. M. 3460.) C. diversifolia (diverse-leaved). A synonym of C. Drummondi. C. Drummondi (Drummond's).* fl.-heads yellow, with a circle of rich crimson-brown around the eye. Summer. l. pinnate, with ovate or lanceolate lobes. h. 1ft. Texas, 1834. A dwarf, spreading, slightly hairy species. SYN. C. diversifolia. (B. M. 3474.) C. grandiflora (large-flowered).* fl. bright yellow; ray-florets five-toothed, deeply cut; peduncle elongated, one-flowered. Summer. l. opposite, connate, almost sessile, fringed with hair at the base. h. 3ft. to 4ft. United States, 1826. Perennial. (S. B. F. G. 175.) C.lanceolata (lance-shaped).* fl.-heads bright yellow, 2in. to 3in. across; ray-florets four-toothed; peduncles long, usually one-flowered. Summer. l. lanceolate, entire, fringed with hairs; upper ones slightly connate at the base. Stem sometimes branched at the base. h. 1ft. to 3ft. North America, 1724. Perennial.
C. maritima. See Leptosyne maritima.
C. nudata (naked). fl.-heads pale bluish, or violet, the size of a small single Dahlia. August. l. few, opposite, linear subulate, rush-like. h. 2ft. to 4ft. Florida (swamps), 1879. (B. M. 6419.) C. rosea (rose). fl.-heads with rose-red rays and yellow disk-flowers; ray-florets coarsely three-toothed or lobed. Summer. l. opposite, linear or nearly so, entire, or the lower ones two to three-toothed or tripartite. h. 1ft. United States.
C. tenuifolia (slender-leaved). A synonym of C. verticillata. C. tinctoria (colouring).* fl.-heads yellow, with a purple-brown blotch at the base; ray-florets few, broad, jagged at the tip.l. pinnate; segments linear. h. 2ft. United States. A very pretty slender-growing annual, of which there are several varieties, differing in the colour of the flowers. SYN. C. bicolor. (B. M. 2512.) C. t. nana (dwarf). fl.-heads, rays yellow above, brown-purple towards the base. h. 6in. to 1ft. A beautiful plant, differing from the type in its dwarfer habit.
C. tripteris (three-winged). fl.-heads yellow and brown; disk turning brownish. Autumn. l. opposite, stalked, three to five-divided; leaflets lanceolate, acute, entire. h. 4ft. to 9ft. United States. Perennial. The flower-heads, when bruised, exhale the odour of Anise. SYN. Chrysostemma tripteris (under which name it is figured B. M. 3553). C. verticillata (whorled).* fl.-heads rich golden yellow, 1 1/4in. across, numerous, erect,solitary on the ends of the many subdivisions of the branches. Summer. l. much divided into linear segments, whorled. Stem furrowed, branched. h. 1ft. to 2ft. United States, 1780. Perennial. SYN. C. tenuifolia.