Ovules of Polypetalae can be identified based on this character

Options

A. Number of ovules in each locule
B. Arrangement of ovules on placenta
C. Size of ovules
D. Number of iinteguments in an ovules

Answer

To identify the ovules of Polypetalae, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Polypetalae**: Polypetalae refers to a group of flowering plants characterized by having separate petals. This group includes various families and species.

2. **Identify Key Characteristics of Ovules**: The ovules in flowering plants can be identified based on several characteristics, such as the number of ovules per locule, the arrangement of ovules, and the number of integuments.

3. **Examine the Options**:
- The number of ovules in each locule can vary among different species, even if they have the same type of placentation.
- The arrangement of ovules on the placenta can also differ and is influenced by the type of placentation (e.g., marginal, free central).
- The size of the ovules may not be a reliable identifying characteristic since it can be similar across different species.

4. **Focus on Integuments**: The most distinctive feature for identifying ovules in Polypetalae is the number of integuments. In Polypetalae, ovules typically have two integuments (biotegmic). This is a key characteristic that helps differentiate them from other groups.

5. **Conclusion**: Therefore, the ovules of Polypetalae can be identified based on the presence of two integuments.

### Final Answer:
The ovules of Polypetalae can be identified based on the presence of two integuments (biotegmic).

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