Cleome. Capparideæ.
Increased by seeds sown in a frame in spring, with slight warmth. Ripened cuttings root freely in moderate heat.
Clerodendron, Ovieda, Siphonantha, Volkameria. Verbenaceæ.
Increased by seed, which, if sown when ripe or in the spring, and grown on in heat, may be converted into flowering plants the second season. Propagated also by cuttings of both green and mature wood; also of roots. Suckers. The climbing varieties do not root quite so readily from cuttings as the others, but cuttings of the ripened wood do well.
Clethra. Ericaceæ.
Propagated by seeds, divisions and layers. Cuttings taken from the half-ripened wood will root in gentle heat.
Clianthus (Glory Pea, Parrot Beak). Leguminosæ.
C. Dampieri is best raised from seeds, which should be sown singly in good-sized pots, when the necessity of first shifting will be obviated. C. puniceus and others from cuttings, which strike easily in sand in bottom heat.
Clintonia. Liliaceæ.
Propagated by seeds and by division of the root in spring.