The arrangement of ovules within the ovary are called Placentation.
Types of Placentation :
1. Marginal : Placenta forms a ridge along the ventral suture of ovary.
2. Axile : Margins of carpels fuse to form central axis.
3. Parietal : Ovules develop on inner wall of ovary.
4. Free central : Ovules borne on central axis, lacking septa.
5. Basal : Placenta develop at the base of ovary.
