Pinus pollen is

Options

A. Non-winged
B. Rounded
C. Winged
D. Ovoid.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the nature of Pinus pollen. Specifically, it requires us to identify the correct description from the given options: non-winged, rounded, winged, or weird.

2. **Identifying the Pollination Method**: Pinus belongs to the group of plants that exhibit anemophily, which means they rely on wind for the transfer of pollen from the male anther to the female stigma.

3. **Characteristics of Pinus Pollen**:
- The pollen grains of Pinus are lightweight, which allows them to be easily carried by the wind.
- They are produced in large quantities to increase the chances of successful pollination.
- Importantly, Pinus pollen grains have wings, which aid in their dispersal through the air.

4. **Evaluating the Options**:
- **Non-winged**: This option is incorrect because Pinus pollen has wings.
- **Rounded**: This option is also incorrect as it does not accurately describe the structure of Pinus pollen.
- **Winged**: This option is correct because Pinus pollen is adapted for wind dispersal with its winged structure.
- **Weird**: This option is not scientifically relevant and is therefore incorrect.

5. **Conclusion**: The correct answer is that Pinus pollen is **winged**.