Rutaceae differs from Malvaceae in having

Options

A. Simple leaves
B. Polypetalous corolla
C. Syncarpous, superior ovary
D. Obdiplostemonous stamens

Explanation

To solve the question "Rutaceae differs from Malvaceae in having," we need to analyze the key characteristics of both plant families.

### Step-by-Step Solution:

1. **Identify the Families**:
- Rutaceae is a family of flowering plants commonly known as the rue or citrus family.
- Malvaceae is known as the mallow family, which includes plants like hibiscus and cotton.

2. **Examine Leaf Structure**:
- Rutaceae typically has simple leaves, while Malvaceae often has compound leaves.

3. **Analyze Flower Structure**:
- Rutaceae flowers usually have polypetalous (many petals) corollas.
- Malvaceae flowers can have a variety of petal arrangements, but often exhibit a different structure.

4. **Ovary Position**:
- In Rutaceae, the ovary is syncarpous and superior, meaning the carpels are fused and the ovary is positioned above the point of attachment of other floral parts.
- In Malvaceae, the ovary can be inferior or superior, but often has a different arrangement.

5. **Stamen Arrangement**:
- A significant difference is in the arrangement of stamens. Rutaceae has opedipalosteminous stamens, which means the stamens are distinct and not fused with the petals.
- Malvaceae typically has a different arrangement, often with fused stamens.

6. **Conclusion**:
- Based on the differences identified, we conclude that Rutaceae differs from Malvaceae primarily in having opedipalosteminous stamens.

### Final Answer:
Rutaceae differs from Malvaceae in having opedipalosteminous stamens.