Select an incorrect match.

Options

A. Valvate aestivation - Calotropis
B. Twisted aestivation - China rose, lady's finger and cotton
C. Imbricate aestivation - Gulmohur
D. Vexillary aestivation - Pea and bean, Cassia

Answer

To solve the question of selecting an incorrect match regarding types of estivation in flowering plants, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understanding Estivation**:
- Estivation refers to the arrangement of petals and sepals in a flower bud before it opens.

2. **Analyzing Option 1: Valvet Estivation - Callotropis**:
- Valvet estivation is characterized by petals that are arranged side by side without overlapping.
- Callotropis is indeed known to exhibit valvet estivation.
- **Conclusion**: This option is correct.

3. **Analyzing Option 2: Twisted Estivation - China Rose, Lady's Finger, Cotton**:
- Twisted estivation is where petals overlap each other in a specific manner.
- The Malvaceae family, which includes China Rose, Lady's Finger, and Cotton, exhibits twisted estivation.
- **Conclusion**: This option is correct.

4. **Analyzing Option 3: Imbricate Estivation - Gulmohar, Cassia**:
- Imbricate estivation involves petals overlapping in a random manner.
- Gulmohar is known to exhibit imbricate estivation, but Cassia does not; it belongs to the imbricate category as well.
- **Conclusion**: This option is correct.

5. **Analyzing Option 4: Vexillary Estivation - Pea, Bean, Cassia**:
- Vexillary estivation features one large petal (standard) that overlaps two smaller petals (wings).
- Pea and Bean belong to the Fabaceae family, which exhibits vexillary estivation.
- However, Cassia does not belong to this category; it belongs to the imbricate type.
- **Conclusion**: This option is incorrect.

### Final Answer:
- The incorrect match is **Option 4: Vexillary Estivation - Cassia**.