Type of aestivation shown by Pisum is :

Options

A. Imbricate
B. Vexillary
C. Twisted
D. Quincuncial

Answer

To determine the type of aestivation shown by Pisum (the pea plant), we can follow these steps:

### Step-by-Step Solution:

1. **Understand Aestivation**: Aestivation refers to the arrangement of petals in a flower before it opens. Different plants exhibit different types of aestivation.

2. **Identify the Flower Structure of Pisum**: The pea plant (Pisum sativum) belongs to the Fabaceae family. It is important to know the typical flower structure of plants in this family.

3. **Recognize Types of Aestivation**: There are several types of aestivation:
- **Imbricate**: Petals overlap each other, with one petal being superior.
- **Vexillary**: One large petal (standard) is at the top, with two smaller petals (wings) on the sides and a smaller petal (keel) at the bottom.
- **Twisted**: Petals twist around each other.
- **Quincuncial**: One petal is superior, and the others overlap in a specific arrangement.

4. **Determine the Aestivation of Pisum**: In the case of Pisum, the petals are arranged in an overlapping manner, which corresponds to the imbricate type of aestivation.

5. **Conclusion**: Therefore, the type of aestivation shown by Pisum is **Imbricate**.

### Final Answer:
The type of aestivation shown by Pisum is **Imbricate**.

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