Floral formula of Caesalpiniaceae is

Options

A.
B.
C.
D.

Explanation

To determine the floral formula of the family Caesalpiniaceae, we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Androsium**:
- The family Caesalpiniaceae has 10 stamens.
- These stamens are free (not fused together).

2. **Identify the Gynoecium**:
- The gynoecium has a superior ovary.
- The ovary is unilocular (meaning it has one chamber).

3. **Analyze the Options**:
- We need to check the options provided to find the correct floral formula.
- The floral formula typically includes the number of sepals, petals, stamens (androecium), and the structure of the ovary.

4. **Evaluate Each Option**:
- **Option 1**: 9 + 1 (10 stamens, but 9 are fused) - Incorrect.
- **Option 2**: 5 stamens - Incorrect.
- **Option 3**: 10 stamens, but no mention of superior ovary - Incorrect.
- **Option 4**: 5 + 5 stamens, unilocular, and superior ovary - Correct.

5. **Conclusion**:
- The correct floral formula for the family Caesalpiniaceae is represented by the fourth option.

### Final Floral Formula:
- The floral formula for Caesalpiniaceae can be summarized as follows:
- **Floral Formula**: \( \text{K} \, [5] \, \text{C} \, [5] \, \text{A} \, [10] \, \text{G} \, (1) \)
- Where K = sepals, C = petals, A = stamens, G = gynoecium (with superior ovary).