Ochreate stipules occur in

Options

A. Rose
B. Polygonum
C. Lathyrus aphaca
D. Smilax.

Answer

**Step-by-Step Solution:**

1. **Understanding Stipules**: Stipules are small leaf-like structures that are found at the base of the leaf stalk (petiole) in some plants. They can serve various functions, including protection of the leaf bud.

2. **Types of Stipules**: There are several types of stipules, including:
- Lateral stipules
- Ventral stipules
- Ocreate stipules
- Inter-petiolar stipules
- Intra-petiolar stipules

3. **Analyzing the Options**: The question asks which plant has ocreate stipules. The options provided are:
- Rose
- Polygonum
- Laterus apica
- Smilax

4. **Identifying Stipule Types in Each Option**:
- **Rose**: Has pre-lateral stipules, so this option is incorrect.
- **Polygonum**: Known to have ocreate stipules, making this option correct.
- **Laterus apica**: Contains pollicius stipules, which are not ocreate.
- **Smilax**: Has Tandrila stipules, which are also not ocreate.

5. **Conclusion**: Based on the analysis, the correct answer is **Polygonum**, as it is the only option that has ocreate stipules.

**Final Answer**: Ocreate stipules occur in **Polygonum**.

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