The mode of arrangement of sepals or petals in a floral bud with respect to the other members of same whorl is known as

Options

A. aestivation
B. placentation
C. vernation
D. venation

Answer

To solve the question regarding the mode of arrangement of sepals or petals in a floral bud with respect to the other members of the same whorl, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Terms**:
- The question asks about the arrangement of sepals or petals in a floral bud. It is important to know the definitions of the terms involved.

2. **Identifying the Correct Term**:
- The mode of arrangement of sepals or petals is specifically referred to as **estivation**. This term describes how these floral parts are positioned relative to each other in a bud before they open.

3. **Analyzing Other Options**:
- **Placentation**: This refers to the arrangement of ovules within the ovary, which is not relevant to the arrangement of sepals or petals.
- **Vernation**: This term relates to the arrangement of leaves in a bud, not flowers.
- **Venation**: This refers to the arrangement of veins and veinlets in leaves, which is also unrelated to the arrangement of floral parts.

4. **Conclusion**:
- Since estivation is the only term that correctly describes the arrangement of sepals or petals in a floral bud, we conclude that the correct answer is **estivation**.

### Final Answer:
The mode of arrangement of sepals or petals in a floral bud with respect to the other members of the same whorl is known as **estivation**.

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