The type of placentation in which ovary is syncarpous unilocular and ovules on sutures is called

Options

A. apical placentation
B. parietal placentation
C. marginal placentation
D. superficial placentation

Explanation

To solve the question regarding the type of placentation in which the ovary is syncarpous, unilocular, and ovules are located on the sutures, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terms**:
- **Syncarpous**: This indicates that the carpels (the female reproductive parts of the flower) are fused together. This means there are multiple carpels that are combined into a single structure.
- **Unilocular**: This means that the ovary has only one locule or chamber.

2. **Identify the Placenta Type**:
- The question specifies that the ovules are located on the sutures of the ovary. In the context of placentation, this arrangement is crucial for identifying the type.

3. **Review Placentation Types**:
- **Marginal Placentation**: In this type, the ovules are attached along the suture line of the ovary. Since the ovary is syncarpous and unilocular, this fits the description perfectly.
- **Other Types**:
- **Apical Placentation**: Ovules are attached at the apex of the ovary.
- **Superficial Placentation**: Ovules are distributed over the entire inner surface of the ovary.
- **Parietal Placentation**: Involves multiple placentas along the walls of the ovary, which does not fit the unilocular description.

4. **Conclusion**:
- Based on the definitions and the characteristics of the ovary described in the question, the correct type of placentation is **Marginal Placentation**.

### Final Answer:
The type of placentation in which the ovary is syncarpous, unilocular, and ovules are located on the sutures is called **Marginal Placentation**.