The structure which holds the leaf blades and help to flutter in wind known as a ................

Options

A. Pulvinus
B. Petiole
C. Stipule
D. Lamina

Answer

To solve the question, "The structure which holds the leaf blades and helps to flutter in wind is known as a ................", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for a specific structure that holds the leaf blades and allows them to flutter in the wind.

2. **Reviewing the Options**:
- **A. Pulvinus**: This is a swollen leaf base found in some plants, particularly legumes, but it does not primarily hold the leaf blades.
- **B. Petiole**: This structure connects the leaf blade to the stem and is flexible, allowing the leaf to flutter in the wind.
- **C. Stipule**: These are small, leaf-like structures found at the base of the leaf stalk, but they do not hold the leaf blade.
- **D. Lamina**: This refers to the broad, flat part of the leaf itself, but it does not hold the leaf to the stem.

3. **Identifying the Correct Answer**: Among the options, the petiole is the structure that holds the leaf blade and allows it to move or flutter in the wind due to its flexibility.

4. **Conclusion**: Therefore, the correct answer is **B. Petiole**.