Parietal placentation occurs in family

Options

A. Brassicaceae
B. Asteraceae
C. Solanaceae
D. Liliaceae.

Answer

**Step-by-Step Solution:**

1. **Understanding Parietal Placentation**:
- Parietal placentation occurs in flowers where the ovules are attached to the inner wall of a unilocular ovary that may develop a false septum, creating a bilocular structure. This type of placentation is typically found in syncarpous ovaries.

2. **Identifying the Families**:
- The question provides four families to consider: Brassicaceae, Asteraceae, Solanaceae, and Liliaceae.

3. **Analyzing Each Family**:
- **Brassicaceae**: This family is known for having parietal placentation. The ovary is syncarpous and can have a unilocular structure that develops a false septum (replum).
- **Asteraceae**: This family exhibits basal placentation, which is not parietal. Therefore, this option is incorrect.
- **Solanaceae**: The Solanaceae family features axial placentation, not parietal. Thus, this option is also incorrect.
- **Liliaceae**: Similar to Solanaceae, the Liliaceae family has axial placentation and does not exhibit parietal placentation, making this option incorrect as well.

4. **Conclusion**:
- After analyzing all the options, the family that exhibits parietal placentation is the **Brassicaceae** family.

**Final Answer**: Parietal placentation occurs in the family **Brassicaceae**.

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