Calamintha. Labiatæ.
Increased by seeds, root divisions, or cuttings in spring.
Calamus. Palmæ.
Increased by seeds.
Calandrinia. Portulacaceæ.
Increased by seeds sown in pots where they are intended to flower, as transplantation, unless performed with more than ordinary care, will check their growth or result in loss.
Calanthe. Orchideæ.
As a rule, the natural annual increase in the number of pseudo-bulbs meets the requirements of most cultivators. Where a quick propagation is desired, it may be performed by dividing the pseudo-bulbs transversely; after allowing the raw surface to callus, the upper part should be set on moist sand, and several buds will form around the base. The bottom portion may be used in the ordinary way. Another plan is to divide the pseudo-bulbs lengthwise into two or more pieces. (See under [Orchids].)