You are shown a slide of longitudinal section of male cone of Pinus. You can observe

Options

A. megaspores filled inside the sporangia
B. seeds attached to megasporophylls
C. winged pollen grains in microsporangia
D. boat-shaped microspores

Answer

### Step-by-Step Text Solution:

1. **Identify the Plant**: The question refers to the male cone of the Pinus plant, which is a member of the Gymnosperms group. Gymnosperms are characterized by having naked seeds, meaning their seeds are not enclosed in an ovary.

2. **Examine the Structure**: In a longitudinal section of the male cone of Pinus, the primary structure to observe is the Microsporangia. These are specialized structures where meiosis occurs.

3. **Understand Microsporangia**: Microsporangia are responsible for producing spores through the process of meiosis. These spores are crucial as they will develop into male gametes.

4. **Formation of Pollen Grains**: The spores that are produced in the Microsporangia will germinate and develop into pollen grains, which are the male gametes in Pinus.

5. **Characteristics of Pollen Grains**: The pollen grains of Pinus are unique because they are winged. This adaptation aids in their dispersal during the pollination process.

6. **Conclusion**: Therefore, when observing a longitudinal section of the male cone of Pinus, one can observe winged pollen grains within the Microsporangia.

### Final Answer:
In the longitudinal section of the male cone of Pinus, you can observe winged pollen grains in the Microsporangia.

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