Types of placentationबीजांडन्यास के प्रकार

NCERT Fig 5.12 · interactive diagram

Parts and their functions

• Marginal (सीमांत) — Placenta is a ridge along the ventral suture; ovules in two rows — pea.
• Axile (स्तंभीय (अक्षीय)) — Placenta axial in a multilocular ovary — china rose, tomato, lemon.
• Parietal (भित्तीय) — Ovules on the inner wall; one-chambered ovary becomes two-chambered by a false septum — mustard, Argemone.
• Free central (मुक्त स्तंभीय) — Ovules on a central axis; no septa — Dianthus, Primrose.
• Basal (आधारी) — Placenta at the base with a single ovule — sunflower, marigold.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 5.12. Report a mistake