A plant with racemose inflorescene, zygomorphic flowers, five sepals and petals showing vexillary aestivation, monocarpellary and unilocular superior ovary, androecium consisting of ten stamens.
The above- listed conditions are characteristics of the which family of plants?

Options

A. Solanaceae
B. Fabaceae
C. Lilaceae
D. Brassicaceae

Answer

To solve the question regarding the characteristics of a plant and its family, we will analyze each characteristic step by step.

### Step-by-Step Solution:

1. **Identify the Inflorescence Type**:
- The plant has a racemose inflorescence. This means that the flowers are arranged on a central stem in a way that the lower flowers bloom first, and the upper flowers bloom later.

**Hint**: Look for families that typically exhibit racemose inflorescence.

2. **Examine Flower Symmetry**:
- The flowers are described as zygomorphic, meaning they are bilaterally symmetrical. This is a key characteristic for certain plant families.

**Hint**: Zygomorphic flowers are often found in specific families; consider which families have this trait.

3. **Count the Sepals and Petals**:
- The plant has five sepals and five petals. This is a common feature in several plant families.

**Hint**: Remember that the number of sepals and petals can help narrow down the family.

4. **Check Aestivation**:
- The petals show vexillary aestivation, which is a specific arrangement of petals where one petal (the standard) is larger and overlaps the two lateral petals.

**Hint**: Vexillary aestivation is a distinctive feature of certain families, particularly the legume family.

5. **Analyze the Ovary Structure**:
- The ovary is monocarpellary and unilocular, which means it has a single carpel and one chamber. It is also described as superior, indicating its position above the attachment of other floral parts.

**Hint**: The structure of the ovary can help identify the family, especially if it is monocarpellary.

6. **Review the Androecium**:
- The androecium consists of ten stamens. This is a specific number that can be characteristic of certain plant families.

**Hint**: The number of stamens can be a crucial identifying feature for plant families.

7. **Identify the Correct Family**:
- Based on the characteristics analyzed, the plant exhibits traits that are consistent with the Fabaceae family (also known as the legume family). This family is known for having racemose inflorescence, zygomorphic flowers, five sepals and petals, vexillary aestivation, a monocarpellary unilocular superior ovary, and an androecium with ten stamens.

**Final Conclusion**: The correct answer is **Fabaceae**.