Abstract: Gametophyte development in Glyptostrobus is here briefly described from sectional material as available at hand. It takes about two and one half months for the pollen tube to penetrate the nucellus and reach the megagametophyte. The division of the body cell is not observed but certainly it is very much delayed. The course of tube growth is described. The female gametophyte begins with the free nuclear division. The tapetum is present in the early stage. Wall formation is initiated at the stage of about 1,600-2,000 free nuclei and proceeds by means of open, ingrowing alveoles. Typical archegonial complex is formed. Jacket cells are differentiated. Since no trace of a ventral canal nucleus is found, it is concluded that tile central nucleus functions directly as the egg nucleus.