Identify the correct pair of characters in physalis I. Petiole adnate to stem. II. Thalamus cup-shaped. III. Seeds non-endospermic. IV. Flowers hypogynous.

Options

A. I and IV
B. II and IV
C. III and IV
D. II and III.

Answer

To solve the question regarding the characters of Physalis, we will analyze each statement provided and determine which ones are correct.

### Step-by-Step Solution:

1. **Understanding Physalis**:
- Physalis is a genus of flowering plants that belongs to the family Solanaceae.

2. **Analyzing Statement I**:
- **Statement I**: "Petiole adnate to stem."
- In Physalis, the petiole (the stalk that attaches the leaf to the stem) is indeed adnate (attached) to the stem.
- **Conclusion**: This statement is **correct**.

3. **Analyzing Statement II**:
- **Statement II**: "Thalamus cup-shaped."
- The thalamus (the thickened part of the stem that bears the floral organs) in Physalis is actually described as flat, not cup-shaped.
- **Conclusion**: This statement is **incorrect**.

4. **Analyzing Statement III**:
- **Statement III**: "Seeds non-endospermic."
- In Physalis, the seeds are actually endospermic, meaning they contain endosperm, which is a tissue that provides nourishment to the developing embryo.
- **Conclusion**: This statement is **incorrect**.

5. **Analyzing Statement IV**:
- **Statement IV**: "Flowers hypogynous."
- In Physalis, the flowers are indeed hypogynous, meaning that the ovary is situated above the other floral parts.
- **Conclusion**: This statement is **correct**.

6. **Final Conclusion**:
- The correct pairs of characters in Physalis are:
- Statement I: Correct
- Statement IV: Correct
- Therefore, the correct answer is the pair consisting of statements I and IV.

### Final Answer:
The correct pair of characters in Physalis is **I and IV**.

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