Select the incorrect statement regarding the anatomy of a typical monocotyledonous stem

Explanation

To solve the question regarding the anatomy of a typical monocotyledonous stem, we need to analyze the statements provided and identify the incorrect one. Here’s a step-by-step breakdown:

### Step 1: Understand the Structure of a Monocotyledonous Stem
Monocotyledonous stems, such as those of maize, have specific anatomical features. They typically consist of:
- **Epidermis**: The outer protective layer.
- **Hypodermis**: A layer beneath the epidermis that provides additional protection.
- **Ground Tissue**: This is where the vascular bundles are embedded.

### Step 2: Analyze Each Statement
1. **Phloem Parenchyma is Absent**: This statement is correct. In monocots, the phloem parenchyma is typically absent.
2. **Vascular Bundles are Scattered, Conjoined, Collateral, and Closed**: This statement is also correct. In monocots, vascular bundles are indeed scattered and can be described as conjoined, collateral, and closed.
3. **Each Vascular Bundle is Surrounded by a Bundle Sheath**: This statement is correct. Vascular bundles in monocots are surrounded by a bundle sheath.
4. **Ground Tissue is Differentiated into Cortex, Endodermis, Pericycle, and Pith**: This statement is incorrect. In monocots, the ground tissue does not differentiate into these structures. Instead, the ground tissue is more homogeneous and does not have distinct regions like cortex, endodermis, pericycle, and pith.

### Step 3: Identify the Incorrect Statement
From the analysis, the statement that "Ground tissue is differentiated into cortex, endodermis, pericycle, and pith" is incorrect.

### Conclusion
The incorrect statement regarding the anatomy of a typical monocotyledonous stem is:
**Ground tissue is differentiated into cortex, endodermis, pericycle, and pith.**

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