The different types of placentation found in plants are
- Marginal placentation: The placenta forms a ridge along the ventral suture of the ovary and the ovules are borne on the ridge. Example: Peas
- Axile placentation: The placenta is axial and the ovules are attached to the multilocular ovary. Example: China rose, lemon and orange.
- Parietal placentation: In this type of placentation, the ovules develop on the inner wall of the ovary. Ovary has a single chamber but appears to be double-chambered because of the formation of a false septum. Example: Mustard and argemone.
- Free central placentation: The ovules are borne on the central axis. The septum is absent in this type of placentation. Example: Dianthus and primrose.
- Basal placentation: In this type of placentation, the placenta is situated at the base of the ovary and a single ovule is attached to it. Example: Sunflower.
Hope this answers your question.
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