Stamens with free anthers but filaments fushed into a number of groups

Options

A. polyadelphous
B. diadelphous
C. monoadelphous
D. syngenesious

Answer

To solve the question regarding the classification of stamens with free anthers but filaments fused into a number of groups, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Stamen**:
- A stamen is the male reproductive part of a flower, consisting of two main parts: the anther (where pollen is produced) and the filament (the stalk that supports the anther).

2. **Identify the Requirements**:
- The question specifies that the anthers must be free (not fused together) while the filaments must be fused into multiple groups.

3. **Review the Types of Fusion**:
- **Syngenesious**: This condition has fused anthers, which does not meet our requirement of free anthers.
- **Monadelphous**: In this case, all filaments are fused into a single group, which does not satisfy the condition of being in multiple groups.
- **Diadelphous**: This involves two groups of fused filaments, which is still not the required condition of multiple groups.
- **Polyadelphous**: This condition describes stamens where the filaments are fused into multiple groups or bundles, while the anthers remain free.

4. **Conclusion**:
- Based on the definitions, the correct answer is **Polyadelphous**, as it meets the criteria of having free anthers and filaments fused into a number of groups.

### Final Answer:
The condition described in the question is called **Polyadelphous**.