Vegetative propagation by leaf takes place in:

Options

A. Ginger
B. Bryophyllum
C. Rose
D. Duranta

Answer

To determine which plant undergoes vegetative propagation by leaf, we will analyze the given options step by step.

### Step-by-Step Solution:

1. **Understanding Vegetative Propagation**:
- Vegetative propagation is a form of asexual reproduction in plants where new individuals arise from vegetative parts like leaves, stems, or roots.

2. **Analyzing Option 1: Ginger**:
- Ginger propagates through rhizomes, which are underground stems. Therefore, it does not propagate through leaves.
- **Conclusion**: This option is incorrect.

3. **Analyzing Option 2: Bryophyllum**:
- Bryophyllum is known for its unique ability to propagate from its leaves. The leaves have notches along the edges where new plantlets can develop.
- **Conclusion**: This option is correct.

4. **Analyzing Option 3: Rose**:
- Roses typically propagate through stem cuttings, not leaves. This method involves taking a piece of stem and planting it to grow a new rose plant.
- **Conclusion**: This option is incorrect.

5. **Analyzing Option 4: Duranta**:
- Duranta propagates through stem cuttings or pieces of woody limbs, not from leaves.
- **Conclusion**: This option is incorrect.

6. **Final Conclusion**:
- Based on the analysis, the only plant that propagates vegetatively by leaves is Bryophyllum.

### Final Answer:
Vegetative propagation by leaf takes place in **Bryophyllum**.

---