| + | Branches angled or winged: lvs. petiolate, opposite, lanceolate or ovate, entire, ribbed: fls. with 4-lobed calyx, 4 petals, 8 stamens, and a 4-loculed ovary, pink or white, in axillary or terminal clusters.—Species 4-6, in Mex. and Cent. Amer. They fall into 2 groups,— those with very unequal stamens, and C. floribunda with nearly equal stamens. |
| + | Centradenias are very showy and desirable plants. The stems are often colored. They like rich leaf-mold with sharp sand, and brisk heat. Give a light but shady position. Strong plants are much benefited by liquid manure, and such applications give better colors in both flowers and fruit. |