In which type of inflorescence the flowers are borne in a basipetal order

Options

A. Racemose
B. Cymose
C. Spike
D. Catkin

Answer

To determine the type of inflorescence in which flowers are borne in a basipetal order, we need to analyze the definitions and characteristics of the given options: raceme, simose, spike, and catkin.

### Step-by-Step Solution:

1. **Understand Basipetal Order**:
- Basipetal order refers to the arrangement of flowers where the older flowers are located at the top and the newer flowers are at the bottom. This means that as you move down the inflorescence, you encounter younger flowers.

2. **Examine the Options**:
- **Raceme**: In a raceme, flowers are arranged in an acropetal order, meaning the younger flowers are at the top and older ones are at the bottom. Thus, this option is incorrect.
- **Simoes**: In simose inflorescence, the growth is terminated by a flower at the main axis, leading to a basipetal arrangement of flowers. Therefore, older flowers are at the top and newer ones at the bottom. This option is correct.
- **Spike**: A spike is similar to a raceme but has sessile flowers. It also follows an acropetal order. Therefore, this option is incorrect.
- **Catkin**: Catkins are spike-like inflorescences with unisexual and apetalus flowers. They do not exhibit a basipetal order. Thus, this option is also incorrect.

3. **Conclusion**:
- After analyzing all the options, the inflorescence that exhibits a basipetal order is **Simoes**.

### Final Answer:
The correct answer is **Simoes inflorescence**.