Subterranean cleistogamous flowers are found in

Options

A. Ficus benghalensis
B. Commelina benghalensis
C. Adina cordifolia
D. Anthocephalus cadamba

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the species that contains subterranean cleistogamous flowers. Cleistogamous flowers are those that do not open and self-pollinate.

2. **Defining Subterranean**: Subterranean refers to organisms or structures that are found below the ground. In this context, it means that the flowers grow underground.

3. **Identifying Cleistogamous Flowers**: Cleistogamous flowers are characterized by their closed petals, which prevent them from opening. This allows for self-pollination, where pollen from the anther of the flower fertilizes the stigma of the same flower.

4. **Analyzing the Options**: The options provided are:
- A) Ficus bengalensis
- B) Commelina benghalensis
- C) Adenocordifolia
- D) Anthocephalus cadamba

5. **Researching Each Option**:
- **Ficus bengalensis**: Known as the banyan tree, it does not produce cleistogamous flowers.
- **Commelina benghalensis**: This species is known to produce both chasmogamous (opening) and cleistogamous flowers, and it is found in extreme climatic conditions.
- **Adenocordifolia**: Not widely recognized for cleistogamous flowers.
- **Anthocephalus cadamba**: Known for its flowers but does not produce cleistogamous flowers.

6. **Conclusion**: Based on the analysis, the species that contains subterranean cleistogamous flowers is **B) Commelina benghalensis**.

7. **Final Answer**: The answer to the question is **B) Commelina benghalensis**.

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