Aestivation of petals in the flower of cotton is correctly shown in

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Answer

To determine the correct type of aestivation of petals in the flower of cotton, we will analyze the different types of aestivation and identify which one applies to cotton.

### Step-by-Step Solution:

1. **Understand Aestivation**: Aestivation refers to the arrangement of petals or sepals in a floral bud before it opens. It is crucial to know the different types of aestivation to identify the correct one for cotton.

2. **Identify Types of Aestivation**:
- **Valvate Aestivation**: Petals or sepals meet at the edges without overlapping.
- **Imbricate Aestivation**: Petals or sepals overlap each other but in a non-specific manner.
- **Twisted Aestivation**: One petal overlaps the next one in a specific manner, creating a twisted appearance.
- **Vexillary Aestivation**: This is a more advanced form where one petal (the standard) is larger and stands out, while the others are arranged around it.

3. **Analyze the Flower of Cotton**: The flower of cotton exhibits twisted aestivation. In this arrangement, the petals overlap each other in a specific manner, which is characteristic of the twisted type.

4. **Conclusion**: Based on the analysis, the correct type of aestivation for the petals in the flower of cotton is twisted aestivation.

### Final Answer:
The correct answer is **Twisted Aestivation**.