cyathium and hypanthodim types of inforescence are similar in
having

Options

A. nectar glands
B. apical pore
C. petaloid bracts
D. unisexual flowers

Answer

To solve the question regarding the similarities between cyathium and hypanthodium types of inflorescence, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Cyathium Inflorescence**:
- Cyathium is characterized by a cup-shaped involucre formed by bracts.
- It contains a single female flower and multiple male flowers.
- The flowers in cyathium are unisexual.

2. **Understand Hypanthodium Inflorescence**:
- Hypanthodium has a fleshy receptacle that forms a hollow cavity.
- In this cavity, female flowers are located at the bottom, while male flowers are positioned at the top near the opening.
- Similar to cyathium, the flowers in hypanthodium are also unisexual.

3. **Analyze the Options**:
- **Nectar Glands**: Not present in both types of inflorescence, so this option is incorrect.
- **Apical Pore**: This is a characteristic feature of hypanthodium, not cyathium, making this option incorrect.
- **Petaloid Bracts**: This feature is not characteristic of either type of inflorescence, so this option is also incorrect.
- **Unisexual Flowers**: Both cyathium and hypanthodium have unisexual flowers, making this option correct.

4. **Conclusion**:
- The correct answer is that both cyathium and hypanthodium types of inflorescence are similar in having unisexual flowers.

### Final Answer:
Cyathium and hypanthodium types of inflorescence are similar in having **unisexual flowers**.

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