Dicliny is found in

Options

A. Calotropis
B. Cucurbita
C. Crotalaria
D. Pisum.

Answer

### Step-by-Step Solution:

1. **Understanding Diclini**:
- Diclini refers to the condition where a flower has only one type of reproductive organ, meaning it can be either male or female but not both. This is also known as unisexuality.

2. **Identifying the Types of Plants**:
- The question provides four options: Calotropis, Cucurbita, Crotalaria, and Pisum. We need to determine which of these exhibits Diclini.

3. **Analyzing Each Option**:
- **Calotropis**: This plant has bisexual flowers, meaning it contains both male and female reproductive organs in the same flower. Therefore, it does not exhibit Diclini.
- **Cucurbita**: This plant can have both male and female flowers on the same plant (monoecious), meaning it exhibits Diclini since it has unisexual flowers.
- **Crotalaria**: Similar to Calotropis, this plant also has bisexual flowers, so it does not exhibit Diclini.
- **Pisum**: This plant also has bisexual flowers, thus it does not exhibit Diclini.

4. **Conclusion**:
- Among the options given, only **Cucurbita** exhibits Diclini as it has unisexual flowers (either male or female) on the same plant.

### Final Answer:
The correct option is **Cucurbita**.

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