Anatomical traits of some species of Kalanchoe (Crassulaceae) and their taxonomic value

Anatomical studies of the stems and leaves of 15 species of the genus Kalanchoe were studied. Anatomical examination of the cross sections of the above mentioned stems and leaves revealed diagnostic characters among species. Data of comparative characters reached 42 couplet characters; data matrix was organized on the basis of variations to obtain a classification using sequential indented key. Data matrix included the anatomical description and features of the epidermis, cortex, pericycle, vascular bundles and pith for stem anatomy and epidermis, mesophyll, midrib region and vascular bundles for leaf anatomy.