Pollination occurring in closed flowers is

Answer

**Step-by-Step Solution:**

1. **Identify the Types of Flowers**: Understand that there are two types of flowers based on their reproductive structures: closed flowers and exposed flowers.

2. **Define Exposed Flowers**: Exposed flowers have their reproductive parts (anthers) visible and are known as chasmogamous flowers. These flowers facilitate cross-pollination because their reproductive parts are accessible to pollinators.

3. **Define Closed Flowers**: Closed flowers have their reproductive parts hidden or enclosed. These are referred to as clistogamous flowers. The structure of clistogamous flowers promotes self-pollination since the reproductive parts are not exposed to the external environment.

4. **Conclusion**: Since the question specifically asks about pollination occurring in closed flowers, the correct term for this type of flower is "clistogamous."

5. **Final Answer**: Therefore, the answer to the question is that pollination occurring in closed flowers is called clistogamous.

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