The correct meaning of the expression 'gynoecium is apocarpous' is

Options

A. gynoecium comprises only one pistil which is fused with stamens
B. gynocium comprises more than one carpel, all of which are free.
C. gynoecium comprises more than one carpel, which are fused.
D. gynoecium comprises only one carpel, which is free.

Answer

To solve the question regarding the expression "gynoecium is apocarpous," we need to understand the terms involved.

### Step-by-Step Solution:

1. **Understanding Gynoecium**:
- The gynoecium is the female reproductive part of a flower. It consists of one or more carpels.

2. **Defining Apocarpous**:
- The term "apocarpous" refers to a condition where the carpels of the gynoecium are free and not fused together. This means that each carpel is separate from the others.

3. **Analyzing the Options**:
- **Option A**: Gynoecium comprises of only one pistil which is fused with stamens.
- This is incorrect because it describes a single pistil and does not mention multiple free carpels.
- **Option B**: Gynoecium comprises of more than one carpel, all of which are free.
- This correctly describes the apocarpous condition, where multiple carpels are present and are not fused.
- **Option C**: Gynoecium comprises of more than one carpel, which are fused.
- This describes a syncarpous condition, which is the opposite of apocarpous.
- **Option D**: Gynoecium comprises only of one carpel, which is free.
- This is partially correct but does not capture the essence of "apocarpous" as it suggests only one carpel.

4. **Conclusion**:
- The correct meaning of the expression "gynoecium is apocarpous" is best represented by **Option B**: Gynoecium comprises of more than one carpel, all of which are free.

### Final Answer:
**Option B: Gynoecium comprises of more than one carpel, all of which are free.**