Pedicellate flowers arising from a single point form

Options

A. umbel
B. cymose head
C. capitulum
D. verticillaster

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about pedicellate flowers that arise from a single point. We need to identify which type of inflorescence this describes.

2. **Defining Key Terms**:
- **Pedicellate Flowers**: These are flowers that are borne on a stalk called a pedicel.
- **Single Point**: This refers to a situation where multiple flowers appear to originate from one location.

3. **Analyzing the Options**:
- **Option 1: Umbel**: In an umbel, the main axis is significantly reduced, causing flowers to appear to arise from a single point. This is characterized by a cluster of flowers at the end of the pedicels, which radiate from a common point.
- **Option 2: Cymos Head**: In a cymose inflorescence, the main axis terminates in a flower, and the arrangement is such that the oldest flowers are at the top and the newest at the bottom. This does not fit the description of flowers arising from a single point.
- **Option 3: Capitulum**: Also known as a head, this inflorescence has numerous small florets that are closely packed on a flat receptacle. While it appears dense, it does not specifically describe flowers arising from a single point.
- **Option 4: Verticillaster**: This is characterized by a whorled arrangement of flowers, typically with sessile or sub-sessile flowers. It does not fit the description of flowers arising from a single point.

4. **Conclusion**: Based on the analysis, the correct answer is **Option 1: Umbel**. In an umbel, the flowers appear to arise from a single point due to the reduction of the main axis.