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 will analyze the options provided and determine the correct answer step by step.

### Step-by-Step Solution:

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

2. **Reviewing the Options**:
- **Option 1: Pulvinus**: This is a swollen leaf base found in some legume plants. It does not hold the leaf blade itself.
- **Option 2: Petiole**: This is a thin stalk-like structure that connects the leaf blade to the stem. It supports the leaf and allows it to flutter in the wind.
- **Option 3: Stipules**: These are small leaf-like structures that are found at the base of the leaf stalk, but they do not hold the leaf blade.
- **Option 4: Lamina**: This refers to the leaf blade itself, which is responsible for photosynthesis, but it does not hold the leaf.

3. **Analyzing Each Option**:
- **Pulvinus**: Incorrect, as it refers to a swollen leaf base and does not hold the leaf blade.
- **Petiole**: Correct, as it is the structure that holds the leaf blade and allows it to flutter in the wind.
- **Stipules**: Incorrect, as they are small structures at the base of the leaf and do not hold the leaf blade.
- **Lamina**: Incorrect, as it is the leaf blade itself and does not serve the function of holding.

4. **Conclusion**:
- The correct answer is **Option 2: Petiole**. It is the structure that holds the leaf blades and allows them to flutter in the wind.

### Final Answer:
The structure which holds the leaf blades and helps to flutter in the wind is known as a **petiole**.