Name the type of pollination in self-incompatible plants.

Explanation

### Step-by-Step Solution:

1. **Understanding Self-Incompatibility**: Self-incompatible plants are those that cannot fertilize themselves. This means that the pollen from the same plant does not successfully fertilize its own ovules.

2. **Recognition of Pollen**: In self-incompatible plants, the stigma (the female part of the flower) does not recognize the pollen grains from the same plant. As a result, a pollen tube does not form, preventing self-fertilization.

3. **Pollination Types**: Since self-pollination is not possible in these plants, they rely on cross-pollination to reproduce.

...