Axile placentation refers to ovules on the central axis and the ovary divided into three locules, as in China rose.

• A. Marginal Placentation
• B. Axile Placentation
• C. Placentation
• D. Syncarpous

Answer: (B)

The main idea here is how ovules are arranged inside the ovary, which is called placentation. In axile placentation, the placental tissue sits along a central axis in a multilocular ovary, and the ovary is divided into several locules arranged around that axis. The ovules attach to this central column within each locule. That matches what you see in the China rose, where the ovary is divided into three locules and the ovules lie along the central axis.

This differs from marginal placentation, where ovules line the edge of a single-chambered ovary, not along a central axis. The term syncarpous describes the ovary’s structural origin (fused carpels) rather than where the ovules attach, and a generic term like placentation doesn’t specify the arrangement. So the description given is a classic example of axile placentation.