Floral formula of Cruciferae is :

Options

A. `K_(4)C_(4)A_(5)G_((2))`
B. `K_(2+2)C_(xx4)A_(2+4)G_((2))`
C. `K_((5))C_((5))A_(5)G_((2))`
D. `K_((5))C_((5))AG_((5))`

Answer

To derive the floral formula of the Cruciferae family (also known as Brassicaceae), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Family**: The family in question is Cruciferae, which is also known as Brassicaceae.

2. **Symmetry of Flowers**: The flowers of this family exhibit radial symmetry.

3. **Count the Sepals**: Cruciferae flowers typically have 4 sepals.

4. **Count the Petals**: They also have 4 petals, which is characteristic of this family.

5. **Count the Stamens**: There are 6 stamens in total. Among these, 4 are long and 2 are short.

6. **Identify the Gynoecium**: The gynoecium consists of a single pistil that is bilocular (having two locules).

7. **Placentation**: The placentation in Cruciferae is parietal.

8. **Formulate the Floral Formula**: Based on the above characteristics, we can summarize the floral formula as follows:
- **Calyx (Sepals)**: 4 (represented as 'K4')
- **Corolla (Petals)**: 4 (represented as 'C4')
- **Stamens**: 6 (represented as 'A6', with a notation indicating 4 long and 2 short)
- **Gynoecium**: 1 (represented as 'G(2)', indicating bilocular)

Therefore, the floral formula can be written as:
**K4 C4 A4+2 G(2)**

### Final Floral Formula:
**K4 C4 A4+2 G(2)**