Interfascicular cambium develops from the cells of

Options

A. pericycle
B. Medullary rays
C. Xylem parenchyma
D. Endodermis

Answer

**Step-by-Step Solution:**

1. **Understanding Interfascicular Cambium:**
- Interfascicular cambium is a type of cambium that forms between the vascular bundles in plants, specifically in woody dicots. It plays a crucial role in secondary growth by producing secondary xylem and phloem.

2. **Identifying the Source of Interfascicular Cambium:**
- The interfascicular cambium develops from the cells located between the vascular bundles, specifically from the medullary rays (also known as pith rays). These cells are responsible for connecting the vascular bundles and facilitating the growth of the cambium.

3. **Differentiating Between Options:**
- The options provided were:
- A) Pericycle
- B) Medullary rays
- C) Xylem parenchyma
- D) Endodermis
- Analyzing each option:
- **Pericycle**: This is a layer of cells located just inside the endodermis and does not contribute to the formation of interfascicular cambium.
- **Medullary rays**: These are the correct source of interfascicular cambium as they connect the vascular bundles and give rise to cambial tissue.
- **Xylem parenchyma**: This is a type of tissue found within the xylem and does not develop into cambium.
- **Endodermis**: This is the innermost layer of the cortex and is not involved in the formation of interfascicular cambium.

4. **Conclusion:**
- Based on the analysis, the correct answer is that the interfascicular cambium develops from the cells of **medullary rays**.

**Final Answer:**
Interfascicular cambium develops from the cells of **medullary rays**.

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