in which of the following, the growing point ends in a flower

Options

A. raceme
B. verticillaster
C. catkin
D. spike

Answer

To solve the question "In which of the following, the growing point ends in a flower?", we need to analyze the given options: verticillaster, raceme, corymb, and spike.

### Step-by-Step Solution:

1. **Understanding the Terms**:
- **Verticillaster**: This is a type of inflorescence where flowers are arranged in whorls around the stem. The growing point ends in a flower, which means that the growth of the stem is limited and culminates in the formation of flowers.
- **Raceme**: In this type of inflorescence, flowers are borne on pedicels along a central stem. The growth point does not end in a flower; instead, it continues to grow and produce more flowers from the base upwards.
- **Corymb**: Similar to raceme, but the flowers are arranged such that the lower pedicels are longer than the upper ones, resulting in a flat-topped appearance. The growing point does not end in a flower.
- **Spike**: This is characterized by flowers that are sessile (without stalks) and arranged along an elongated axis. The growing point also does not end in a flower.

2. **Identifying the Correct Option**:
- Among the options, only **verticillaster** has a growing point that ends in a flower. This is because it is a type of cymose inflorescence, which has limited growth.

3. **Conclusion**:
- The correct answer to the question is **verticillaster**.

### Final Answer:
The growing point ends in a flower in **verticillaster**.

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