Amphicribral vascular bundle is present in the stem of

Options

A. Selaginella
B. Ficus
C. Helianthus
D. Oryza

Answer

### Step-by-Step Solution:

1. **Understanding Amphicribral Vascular Bundles**:
- Amphicribral vascular bundles are characterized by the arrangement where the xylem is completely surrounded by phloem. This means that in a cross-section, the xylem is in the center, with phloem encircling it entirely.

2. **Identifying the Options**:
- The question provides four options: Cileginella, Ficus, Helianthus, and Orisa. We need to determine which of these plants has amphicribral vascular bundles in their stems.

3. **Analyzing Each Option**:
- **Cileginella**: This plant is known to have amphicribral vascular bundles. The xylem is completely surrounded by phloem.
- **Ficus**: This plant exhibits a leptocentric vascular bundle, where phloem is surrounded by xylem, making this option incorrect.
- **Helianthus**: This plant has collateral or conjoint vascular bundles, where phloem and xylem are arranged side by side, which is also incorrect.
- **Orisa**: Similar to Helianthus, Orisa also has collateral vascular bundles, making this option incorrect as well.

4. **Conclusion**:
- Based on the analysis, the correct answer is **Cileginella**, as it is the only plant listed that possesses amphicribral vascular bundles in its stem.