Amphicribal vascular bundles are also called

Options

A. Leptocentric
B. Hadrocentric
C. Amphivasal
D. Bicollateral

Answer

To answer the question "Amphicribal vascular bundles are also called," we need to analyze the options provided and understand the definitions of the different types of vascular bundles.

### Step-by-Step Solution:

1. **Understanding Amphicribal Vascular Bundles**:
- Amphicribal vascular bundles are characterized by having xylem located in the center and phloem surrounding it on both sides. This means that the xylem is encircled by phloem.

2. **Analyzing the Options**:
- **Option 1: Leptocentric**: This term refers to a vascular bundle where the phloem surrounds the xylem, which is the opposite of amphicribal. Therefore, this is not the correct answer.
- **Option 2: Hydrocentric**: This term describes a vascular bundle where the phloem surrounds the xylem, similar to leptocentric. This is also not the correct answer.
- **Option 3: Bicolateral**: In a bicolateral vascular bundle, there are two phloem tissues on either side of the xylem. This does not match the definition of amphicribal.
- **Option 4: Amphicribal**: This is the term we are trying to define, and it is not listed among the options. However, it is important to note that amphicribal vascular bundles are often referred to as "amphivasal" bundles in some contexts.

3. **Conclusion**:
- Based on the definitions and characteristics of the vascular bundles, amphicribal vascular bundles can be referred to as "amphivasal" bundles. However, since this term was not explicitly mentioned in the options, we can conclude that the correct answer is not provided in the options given.

### Final Answer:
Amphicribal vascular bundles are also called "amphivasal" bundles.