The Flower
Question
Placentation in which ovules develop on the inner wall of the ovary or in peripheral part, is
Easy
Solution
In parietal placentation, the ovules develop on the inner wall of the ovary or on peripheral part. Ovary is one-chambered, but it becomes two chambered due to the formation of the false septum, e.g., mustard and Argemone.
When the ovules are borne on central axis and septa are absent, as in Dianthus and Primrose the placentation is called free central.
In basal placentation, the placenta develops at the base of ovary and a single ovule is attached to it, as in sunflower, marigold.
When the placenta is axial and the ovules are attached to it in a multilocular ovary, the placentation is said to be axile, as in china rose, tomato and lemon.
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