Which of the following parts of the flower are incorrectly matched?

Options

A. Microsporophyll - stamen
B. Microspore - pollen grain
C. Megasporophyll - carpel
D. Megaspore - ovule

Answer

To determine which parts of the flower are incorrectly matched, we need to analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the First Option: Microsporophyll = Stamen**
- Microsporophyll refers to the male reproductive structure of the flower, which is indeed the stamen. The stamen is composed of the anther and filament, where pollen is produced.
- **Conclusion**: This match is correct.

2. **Identify the Second Option: Microsporophyll = Pollen Grain**
- Microsporophyll produces pollen grains, which are the male gametes. The term "microspore" refers to the spores that develop into pollen grains.
- **Conclusion**: This match is also correct.

3. **Identify the Third Option: Megasporophyll = Carpel**
- Megasporophyll is the term used for the female reproductive structure, which is represented by the carpel. The carpel consists of the stigma, style, and ovary, and it is indeed the female part of the flower.
- **Conclusion**: This match is correct.

4. **Identify the Fourth Option: Megaspore = Ovule**
- The term "megasporangium" is the correct term that corresponds with ovule. Megasporangium is the structure that contains the megaspores, which develop into female gametes. The term "megaspor" does not correctly match with ovule.
- **Conclusion**: This match is incorrect.

### Final Answer:
The incorrectly matched part of the flower is **Megaspore = Ovule**. It should be **Megasporangium = Ovule**.

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