A beautiful whorl which encloses whole of the inflorescence is

Options

A. bract
B. spadix
C. appendix
D. involucre

Answer

To solve the question "A beautiful whorl which encloses the whole of the inflorescence is," we need to analyze the options provided and understand their definitions in the context of flowering plants.

### Step-by-Step Solution:

1. **Understanding Inflorescence**:
- Inflorescence refers to the arrangement of flowers on a floral axis. It is essentially a branch system that supports multiple flowers.

2. **Analyzing the Options**:
- **Bract**: These are specialized leaves that can be found in the axil of flowers. They do not enclose the entire inflorescence but may support individual flowers.
- **Spadix**: This is a type of inflorescence that is a modified spike with a fleshy rachis and is often covered by a large bract. However, it does not enclose the entire inflorescence.
- **Appendix**: This term refers to a part of the human body and is not relevant in the context of flowering plants.
- **Involucre**: This is a structure that consists of a ring of bracts that arises beneath a flower cluster. It serves to enclose and protect the inflorescence.

3. **Identifying the Correct Answer**:
- Among the options, the **involucre** is the only structure that fits the description of a "beautiful whorl which encloses the whole of the inflorescence." It is characterized by its ring-like formation that surrounds the flower cluster.

### Conclusion:
The correct answer to the question is **involucre**.

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