Character not related to anatomy of dicot leaf

Options

A. Stomatal frequency is more in lower epidermis than upper epidermis
B. Heterogenous mesophyll
C. Phloem towards abaxial epidermis
D. Vascular bundle provided with scleren- chymotous bundle sheath

Answer

To determine the character not related to the anatomy of a dicot leaf, we need to analyze the provided options based on the anatomical features of dicot leaves.

### Step-by-Step Solution:

1. **Understand the Structure of Dicot Leaves**:
- Dicot leaves have distinct layers: the upper epidermis (adaxial surface), lower epidermis (abaxial surface), mesophyll (which includes palisade and spongy parenchyma), and vascular bundles (xylem and phloem).

2. **Analyze Each Option**:
- **Option A**: Stomatal frequency is more in the lower epidermis than the upper epidermis.
- This is true. Dicot leaves typically have more stomata on the lower epidermis to reduce water loss.

- **Option B**: Heterogeneous mesophyll.
- This is also true. Dicot leaves have a heterogeneous mesophyll composed of palisade parenchyma and spongy parenchyma.

- **Option C**: Phloem towards abaxial epidermis.
- This is true. In dicot leaves, the phloem is located towards the lower epidermis (abaxial side), while xylem is on the upper side (adaxial).

- **Option D**: Vascular bundles provided with clear enchyma test cells.
- This is false. Dicot vascular bundles are surrounded by parenchyma cells, not clear enchyma test cells. Clear enchyma is not a typical feature of dicot leaf anatomy.

3. **Conclusion**:
- The character not related to the anatomy of a dicot leaf is **Option D**: "Vascular bundles provided with clear enchyma test cells."

### Final Answer:
**Option D**: Vascular bundles provided with clear enchyma test cells.

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