Chlora
(from chloros, pale; alluding to the pale yellow-coloured flowers). Yellow-wort. ORD. Gentianeae. Very pretty little hardy (mostly) annuals. Flowers yellow, terminal, stalked, aggregate or solitary; corolla salver-shaped; tube shorter than the calyx. Leaves opposite, sessile, or perfoliate, entire. They are very easily cultivated, succeeding in pots or borders, in ordinary garden soil; and may be readily propagated from seeds, which should be sown in pots, in a cold frame, in spring.
C. grandiflora (large-flowered).* fl. golden-yellow, much larger than those of the kinds described below. h. 6in. to 1ft. Corsica and Sardinia. Hardy biennial. (R. G. 469.)
C. imperfoliata (not-perfoliate). fl. terminal; corolla deep yellow, six-cleft. June. l. sessile, somewhat stem-clasping, ovate, acute. Stems simple, tetragonal. h. 1ft. South-western Europe, 1823.
C. perfoliata (perfoliate).* fl. golden yellow, in a corymb of two forks, with a pedicellate flower in each fork. July. l., root ones oval, sessile, rosulate, the lower stem ones oval-lanceolate, the rest perfoliate. Stem dichotomous, cylindrical. h. 1ft. Europe, in chalky pastures or banks, and limestone and clay soils. (Sy. En. B. 913.) C. serotina (late-flowering). fl. yellow. November. h. 1ft. Europe, 1832.