Diadelphous condition occurs in

Options

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

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the occurrence of the diadelphous condition in flowering plants. We need to identify which of the given plant families exhibits this condition.

2. **Definition of Diadelphous Condition**: Diadelphous refers to a specific arrangement of stamens in which they are united into two groups. This is an important characteristic to note when examining the options provided.

3. **Analyzing the Options**: The options given are:
- Solanaceae
- Fabaceae
- Asteraceae
- Liliaceae

4. **Identifying the Correct Family**: Among the listed families, the diadelphous condition is specifically found in the **Fabaceae** family, which is also known as the legume family or leguminaceae.

5. **Details of the Fabaceae Family**: In the Fabaceae family, there are typically 10 stamens. These stamens are arranged in a diadelphous manner, where 9 stamens are fused together to form a sheath around the ovary, while 1 stamen remains free.

6. **Conclusion**: Based on the analysis, the diadelphous condition occurs in the **Fabaceae** family.

### Final Answer:
Diadelphous condition occurs in **Fabaceae**.

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