Semi lunar patches of sclerenchyma are seen

Options

A. Above phloem in monocot stem
B. Below phloem in monocot stem
C. Above phloem in dicot stem
D. Below phloem in dicot stem surrounded by

Answer

To solve the question regarding the location of semi-lunar patches of sclerenchyma, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure**: Recognize that semi-lunar patches of sclerenchyma refer to the pericycle, which is a layer of cells found in the plant stem.

2. **Identify the Location**: The pericycle is located on the inner side of the endodermis in the stem of flowering plants. It is important to note that it is situated above the phloem.

3. **Evaluate the Options**: The question provides four options regarding the location of the semi-lunar patches:
- Above phloem in monocot stem
- Below phloem in monocot stem
- Above phloem in dicot stem
- Below phloem in dicot stem

4. **Eliminate Incorrect Options**:
- Since the pericycle is above the phloem, options that state "below phloem" (options 2 and 4) can be eliminated.
- In monocot stems, the pericycle is indistinguishable, which means it cannot be identified clearly. Therefore, option 1 (above phloem in monocot stem) is also incorrect.

5. **Identify the Correct Answer**: The only option left is option 3, which states that the semi-lunar patches of sclerenchyma are found above phloem in dicot stems. This is the correct answer.

### Final Answer:
The semi-lunar patches of sclerenchyma are seen **above phloem in dicot stem**.

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