Abstract: The thesis have reported firstly the embryological charactercampylotropous,and there are endothelium Without hypostase.micropyle is long,formed by inner integument only.The one megaspore archesporial under the nucellar epidermal cell differentiate directly into megaspore mother cell,the meiosis of megaspore mother cell are nomally.The megaspore tetrad is linear,but only the megaspore near thechalazal end remain The formation of embryo sac is Polygonum type.The development of egg apparatus are normally and differentiate clearly,the two polar nucleus of the central cell fused into a secondary nucleus lately.The mature embryo sac contain an egg apparatus,a central cell,many spherical crystalline body liked starch grains.the antipodal cells and many nucellar cell remain firstly and disappeared at last.Embryological features in Ternstroemiodeae are of systematic significance to some extent.