Which of the following plants produce (s) chasmogamous and cleistogamous flowes?

Options

A. Vicia(commonpansy)
B. Oxalis
C. Commelina
D. all

Answer

To determine which of the following plants produce both chasmogamous and cleistogamous flowers, we need to understand the definitions and characteristics of these flower types.

### Step-by-Step Solution:

1. **Define Chasmogamous Flowers**:
- Chasmogamous flowers are those that open up and allow for pollination to occur. They can facilitate both self-pollination and cross-pollination.

2. **Define Cleistogamous Flowers**:
- Cleistogamous flowers, on the other hand, remain closed and typically only allow for self-pollination. The anthers and stigmas are not exposed, which means they do not facilitate cross-pollination.

3. **Identify the Plants**:
- We have four options to consider:
- a) Vecea
- b) Oxalis
- c) Comelina
- d) Aug

4. **Analyze Each Option**:
- **Vecea**: Known to produce both chasmogamous and cleistogamous flowers.
- **Oxalis**: Also produces both types of flowers.
- **Comelina**: Similarly, it produces both chasmogamous and cleistogamous flowers.
- **Aug**: This option does not typically produce both types of flowers.

5. **Conclusion**:
- The plants that produce both chasmogamous and cleistogamous flowers are Vecea, Oxalis, and Comelina. Therefore, the correct answer is options a, b, and c.

### Final Answer:
The plants that produce both chasmogamous and cleistogamous flowers are Vecea, Oxalis, and Comelina.

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