Persistent and accrescent calyx occurs in

Options

A. Pea
B. Gram
C. Physalis
D. Petunia.

Answer

To determine which plant exhibits a persistent and accrescent calyx, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terms**:
- **Persistent Calyx**: This refers to a calyx that remains attached to the fruit after flowering and fertilization.
- **Accrescent Calyx**: This refers to a calyx that continues to grow after flowering, often forming a larger structure.

2. **Analyze the Options**:
- We need to look at the options provided and identify which plant families they belong to. The families of flowering plants are crucial in determining the characteristics of their flowers and calyx.

3. **Identify the Relevant Family**:
- The question mentions options that include plants from different families. Notably, the **Leguminosae** family (which includes plants like peas and gram) does not typically exhibit a persistent and accrescent calyx.

4. **Focus on the Correct Family**:
- The **Solanaceae** family (which includes plants like potatoes and tomatoes) is known for having members that exhibit persistent and accrescent calyx characteristics.

5. **Identify the Correct Plant**:
- Among the plants in the Solanaceae family, **Physalis** is specifically known for having a persistent and accrescent calyx. This plant forms a large papery husk derived from the calyx, which is a notable feature.

6. **Conclusion**:
- Therefore, the correct answer to the question is **Physalis**, which is option number 3.

### Final Answer:
The persistent and accrescent calyx occurs in **Physalis**.

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