In monocot stem
( a ) Vascular bundles are scattered.
( b ) Hypodermis is sclerenchymatous.
( c ) Endodermis is well developed.
( d ) Stele is atactostele.

Options

A. Only ( a ) & ( b ) are correct
B. Only ( c ) & ( d ) are correct
C. Only ( c ) is incorrect
D. All ( a ), ( b ), ( c ) & ( d ) are correct

Answer

To solve the question regarding the characteristics of a monocot stem, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement (a): Vascular bundles are scattered.**
- In monocot stems, the vascular bundles (which consist of xylem and phloem) are indeed scattered throughout the stem's cross-section. This is a distinguishing feature of monocots compared to dicots, where vascular bundles are arranged in a ring.
- **Conclusion:** This statement is **true**.

2. **Statement (b): Hypodermis is sclerenchymatous.**
- The hypodermis in monocot stems is typically made up of sclerenchyma, which is a type of supportive tissue composed of dead cells. This tissue provides strength and support to the stem.
- **Conclusion:** This statement is **true**.

3. **Statement (c): Endodermis is well developed.**
- In monocot stems, the endodermis is not as well developed as in dicots. In fact, it is often less distinct or may not be present at all in some monocots. Therefore, this statement is inaccurate.
- **Conclusion:** This statement is **false**.

4. **Statement (d): Stele is atactostele.**
- The term "atactostele" refers to a type of stele where the vascular bundles are scattered throughout the stem, which is characteristic of monocots. This structure allows for efficient transport of water and nutrients.
- **Conclusion:** This statement is **true**.

### Final Evaluation:
- Based on the analysis:
- Statement (a) is true.
- Statement (b) is true.
- Statement (c) is false.
- Statement (d) is true.

Thus, the only incorrect statement is (c), which means the answer to the question is that statement (c) is false.