Tisserat, B.Demason, D.A.2014-07-102014-07-101980Annals of Botany 46, 465-472, 1980http://hdl.handle.net/123456789/4002Callus cultures from axillary buds of 2-4-year-old offshoots or Phoenix dactylifera L. have yielded pIantlets adventitiously. Adventive embryos originated from meristemalic cytoplasm-rich cells located in the epidermal and adjacent sub-epidermal portions of the periphery of callus on a basal medium supple­mented with 2.4-D and isopentenyladenine. The formation of adventive embryos is. described. Morphogenetically complement cells proliferate into globular proembryos which differentiate into bipolar structures. Transfer to a medium devoid of hormones enhances embryo development and promotes plantlet growth. Comparative studies were made between zygotic and adventive embryos in various stages of development.enPhoenix dactylifera Ldate palmPalmaeadventive embryogenesishistological developmentArticle