

1. The sporophyte which is the dominant plant in the life cycle is differentiated into roots, stem and leaves.
2. The highest degree of perfection of vascular system with true vessels in the xylem and companion cells in the phloem.
3.The presence of four microsporangia per microsporophyll.
4. Ovules are always enclosed in an ovary which is basal region of the megaspores.
5. Presence of single functional megaspores which is permanently retained within the nucellus or megasporangium.
6. The seed remain closed in the ripened ovary called the fruit.
7. Phenomena of double fertilization or triple fusion is the characteristics of angiosperms.
8. Endosperm develops afer fertilization. It is triploid.
