The distinct feature of fabaceae are

Options

A. Zygomorphic , diadelphous and monocarpellary
B. Actinomorphic, monadelphous and monocarpellary
C. Zygomorphic, monadelphous and pentacarpellary
D. Zygomorphic, polyadelphous and tricarpellary

Answer

To answer the question about the distinct features of the Fabaceae family (also known as the legume or pea family), we can break down the characteristics step by step:

### Step-by-Step Solution:

1. **Inflorescence**:
- The inflorescence of the Fabaceae family is typically racemose. This means that the flowers are arranged in a raceme, which is a type of flower cluster.

2. **Flower Structure**:
- The flowers are complete and zygomorphic. Zygomorphic means that the flower can be divided into two symmetrical halves along one plane, indicating bilateral symmetry.

3. **Sexuality**:
- The flowers are bisexual, meaning they contain both male (stamens) and female (carpels) reproductive parts.

4. **Ovary Position**:
- The ovary is superior, which is referred to as hypogynous. This means that the ovary is positioned above the other floral parts.

5. **Calyx**:
- The calyx consists of five sepals that are gamosepalous, meaning the sepals are fused together. The arrangement of the sepals can be either valvate or imbricate.

6. **Petals**:
- The petals are polypetalous, meaning they are separate and not fused. The arrangement of the petals is vexillary, which is a unique arrangement where one petal (the standard) is larger and overlaps the others.

7. **Androsium**:
- The androsium consists of 10 stamens that are united at the filament, which is referred to as diadelphous. This means that the stamens are grouped into two bundles.

8. **Gynosium**:
- The gynosium is characterized by a single carpel, making it monocarpillary. The ovary is unilocular, meaning it has one chamber.

9. **Seed Type**:
- The seeds produced are typically legume seeds, which are characteristic of the Fabaceae family.

### Conclusion:
Based on the distinct features listed above, the correct options that describe the Fabaceae family are:
- Zygomorphic (bilateral symmetry)
- Diadelphous (10 stamens united at the filament)
- Monocarpillary (single carpel)

Thus, the answer is: **Zygomorphic, Diadelphous, and Monocarpillary.**

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