Which of the following is a family of monocots ?

Options

A. Leguminoseae
B. Solanaceae
C. Liliaceae
D. Brassicaceae

Answer

To determine which of the following is a family of monocots, we need to analyze the given options: Leguminaceae, Solanaceae, Liliaceae, and Braciaceae.

### Step-by-Step Solution:

1. **Understanding Monocots**:
- Monocots, or monocotyledons, are a group of flowering plants that typically have one seed leaf (cotyledon). They usually exhibit specific characteristics such as parallel leaf venation, fibrous root systems, and floral parts in multiples of three.

2. **Analyzing the Options**:
- **Leguminaceae**: This family includes legumes like peas and beans. It is a family of dicots, not monocots.
- **Solanaceae**: This family includes nightshades like tomatoes and potatoes. It is also a family of dicots.
- **Liliaceae**: This family includes plants like lilies and tulips. It is a family of monocots.
- **Braciaceae**: This family is less commonly known and does not fit the characteristics of monocots.

3. **Identifying Characteristics of Liliaceae**:
- **Root System**: Fibrous root system.
- **Leaves**: Parallel venation.
- **Flowers**: Floral parts are in multiples of three.
- **Androsium**: Typically has six stamens.
- **Gynosium**: Usually has three carpels, often syncarpous and superior.

4. **Conclusion**:
- Based on the analysis, the family that is a representative of monocots is **Liliaceae**.

### Final Answer:
The correct answer is **Liliaceae** (Option 3).

---