Answer (1)
3rd Mar, 2022
Placentation refers to the arrangement of ovules within the ovary. It is of several types:
1. Marginal placentation – Ovules are arranged along the margin of the ovary, as in peas.
2. Axile placentation – Ovules are attached to a central axis, as in tomato and hibiscus.
3. Parietal placentation – Ovules are attached to the inner wall of the ovary, as in mustard.
4. Basal placentation– A single ovule is attached at the base of the ovary, as in sunflower.
5. Free central placentation – Ovules are attached to a central column without any partitions, as in dianthus.
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