The condition in which anthers of all the stamens of a flower are united while filaments are free can be seen in
(a) Fabaceae
(b) Asteraceae
(c) Malvaceae
(d) Liliaceae

Options

A. Fabaceae
B. Asteraceae
C. Malvaceae
D. Liliaceae

Answer

To solve the question regarding the condition in which the anthers of all the stamens of a flower are united while the filaments are free, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks about a specific floral structure where the anthers are united, but the filaments are free. This is a specific arrangement of stamens in flowering plants.

2. **Identify the Key Terms**:
- **Anthers**: The part of the stamen that produces pollen.
- **Filaments**: The stalk that supports the anther.
- **United Anthers**: This means that the anthers are fused together.
- **Free Filaments**: This means that the filaments are not fused and can move independently.

3. **Analyze the Options**:
- **(a) Fabaceae**: Known for having a variety of floral structures, but typically has free stamens.
- **(b) Asteraceae**: Usually has a different arrangement of stamens.
- **(c) Malvaceae**: This family is known for having a condition where the anthers are united while the filaments are free.
- **(d) Liliaceae**: Generally has a different floral structure.

4. **Determine the Correct Answer**: Based on the knowledge of floral structures, the condition where anthers are united and filaments are free is characteristic of the **Malvaceae** family.

5. **Final Answer**: Therefore, the correct answer is **(c) Malvaceae**.