Successfully starting plants from leaf cuttings is an easy way to experience one of nature's miracles, totipotency.
Totipotency is the ability of each and every plant cell to regenerate an entirely new plant.
Leaf cuttings can be made from the leaf blade and petiole, leaf blade alone, or sections of the leaf. Many houseplants such as rex and rhizomatous begonias, African violets, streptocarpus, gloxinias and sansevierias are willing candidates. To start a plant from leaf sections, select a shallow pan to hold the cuttings. A sweater box with a transparent lid works well. Wash it thoroughly with diluted bleach and allow it to dry.