Ochreate stipules occur in leafy vegetable

Options

A. Amaranthus
B. Mentha
C. Platanus
D. Rumex.

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). They can serve various functions, including protection and support for the leaf.

2. **Types of Stipules**: Stipules can take different forms, such as:
- **Tendrilous stipules**: These act like tendrils.
- **Lateral stipules**: These are positioned on the sides of the leaf.
- **Scaly stipules**: These are in the form of scales.

3. **Defining Ocreate Stipules**: Ocreate stipules are a specific type of stipule that forms a tubular sheath around the internode of the plant. This sheath provides protection and support.

4. **Identifying Leafy Vegetables with Ocreate Stipules**: The question asks for leafy vegetables that exhibit ocreate stipules. Common examples include:
- **Rumex**: Known to have ocreate stipules.
- **Polygonum**: Also known to have ocreate stipules.

5. **Evaluating the Options**: The options provided are:
- Amaranthus
- Mentha
- Platinus
- Rumex

Among these options, only Rumex is known to have ocreate stipules. The other three (Amaranthus, Mentha, and Platinus) do not have stipules.

6. **Conclusion**: Therefore, the correct answer to the question is **Rumex**, as it is the only option that features ocreate stipules.

---