In this paper, we have compared veins and stomates in the leaves of Calamus egregius, C.simplicifolius, C.tetradactylus, C.dioicus, Daemonorops margaritae and D.jenkinsiana. Still farther with the E.M., we have observed the ultrastructure of seedlings and culture seedlings of C.simplicifolius, C.tetradactylus and Daemonorops margaritae. We aim at distinguishing rattanc and improving the cultural technique.
