Select the wrong pair.

Options

A. Banyan : Adventitious roots for support
B. Bougainvillea : Thorns from axillary buds
C. Alstonia : Whorled phyllotaxy
D. Datura : Zygomorphic flower

Answer

To solve the question of selecting the wrong pair, we will analyze each option provided in the question step by step.

### Step 1: Analyze the first option - Bunion and Adventitious Roots
- **Explanation**: Bunion trees develop adventitious roots that grow from parts of the plant other than the radical (the root). These roots provide support and stability to the tree.
- **Conclusion**: This is a correct pair.

### Step 2: Analyze the second option - Bougainvillea and Thorns from Axillary Buds
- **Explanation**: In Bougainvillea, the thorns are actually modified stems, not axillary buds. The thorns serve a protective function for the plant.
- **Conclusion**: This is also a correct pair.

### Step 3: Analyze the third option - Elstonia and Whorled Phyllotaxy
- **Explanation**: Elstonia exhibits whorled phyllotaxy, where leaves are arranged in a whorl around a single node. This is a correct description of the plant's leaf arrangement.
- **Conclusion**: This is a correct pair.

### Step 4: Analyze the fourth option - Dhatura and Zygomorphic Plant
- **Explanation**: Dhatura is known for its actinomorphic flowers, which exhibit radial symmetry. Zygomorphic plants, on the other hand, have bilateral symmetry. Therefore, describing Dhatura as zygomorphic is incorrect.
- **Conclusion**: This is the wrong pair.

### Final Answer
The wrong pair is **Dhatura is a zygomorphic plant**.

---