Which of these properties are seen in Hibiscus rosa - sinensis ?
(i) Leaves with alternate phyllotaxy
(ii) Polycarpellary syncarpous inferior ovary
(iii) Twisted aestivation in petals
(iv) Basal placentation of ovules

Options

A. i and ii
B. iii and iv
C. i and iii
D. ii and iv

Answer

To determine the properties of Hibiscus rosa-sinensis, we will evaluate each statement provided in the question:

1. **Leaves with alternate phyllotaxy**:
- In Hibiscus rosa-sinensis, the leaves are indeed arranged in an alternate pattern along the stem. This means that each leaf arises at a different height from the previous one, rather than being directly opposite. Therefore, this statement is **correct**.

2. **Polycarpellary syncarpous inferior ovary**:
- The ovary of Hibiscus rosa-sinensis is actually a superior ovary, not inferior. A superior ovary is one that is situated above the attachment of other floral parts. Thus, this statement is **incorrect**.

3. **Twisted aestivation in petals**:
- The petals of Hibiscus rosa-sinensis exhibit twisted aestivation, where the petals overlap each other in a specific manner. This is characteristic of the flower's structure. Therefore, this statement is **correct**.

4. **Basal placentation of ovules**:
- In Hibiscus rosa-sinensis, the ovules are not attached at the base of the ovary (which would indicate basal placentation). Instead, the placentation is axile, meaning the ovules are attached along the central axis of the ovary. Thus, this statement is **incorrect**.

**Summary of the evaluation**:
- Statement (i) is **correct**.
- Statement (ii) is **incorrect**.
- Statement (iii) is **correct**.
- Statement (iv) is **incorrect**.

Therefore, the properties seen in Hibiscus rosa-sinensis are statements (i) and (iii).