Vascular bundles of Equisetum possess

Options

A. Exarch xylem
B. Vallecular canals
C. Carinal canals
D. Radial strands of xylem.

Answer

To solve the question regarding the vascular bundles of Equisetum, we will analyze the options provided and determine which one is correct based on the characteristics of Equisetum.

### Step-by-Step Solution:

1. **Understanding Vascular Bundles**:
- Vascular bundles are structures that contain xylem and phloem, which are essential for the transport of water, nutrients, and food in plants.

2. **Identifying the Structure in Equisetum**:
- In Equisetum (commonly known as horsetails), the vascular bundles are organized in a specific manner. They are typically found below the ridges of the stem.

3. **Types of Canals**:
- The vascular bundles in Equisetum are associated with specific types of canals. The options provided include:
- Exarch xylem
- Vallicular canals
- Carinal canals
- Radial strands of xylem

4. **Analyzing Each Option**:
- **Exarch xylem**: This refers to a type of xylem development where the xylem is located on the outer side. This is not characteristic of Equisetum.
- **Vallicular canals**: These are not the primary feature of Equisetum's vascular bundles.
- **Carinal canals**: These are specific to Equisetum and are responsible for transporting water through the cavities present in the vascular bundles.
- **Radial strands of xylem**: This is not a term typically used to describe the vascular bundles in Equisetum.

5. **Conclusion**:
- Based on the analysis, the correct answer is **Carinal canals**. These canals are integral to the water transport system in Equisetum.

### Final Answer:
The vascular bundles of Equisetum possess **Carinal canals**.

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