Cercidiphyllum. Leguminosæ.
Propagated by tender cuttings made during the summer, and slightly wilted before placing in the frames.
Cercis (Judas-tree). Leguminosæ.
Propagated by seeds, sown about the end of March on a bed of light soil, in a gentle heat. They may also be increased by layers, but plants raised from seeds thrive best. It is not necessary to stratify the seeds, C. Japonica is grown from soft cuttings in early summer.
Cereus. See [Cactus].
Ceropegia. Asclepiadeæ.
Propagated by cuttings of small side shoots made in spring, which will root in sand, in heat, with or without a glass covering.
Cestrum, including Habrothamnus. Solanaceæ.
Propagated by cuttings in August, the same being potted off as frequently as the roots reach the sides of the pots.
Chænostoma. Scrophularineæ.