Which of the following statement for hydathodes is correct ?

Options

A. Opens to release excessive pure water from leaves
B. Contains a loosely arranged parenchyma called eppithem
C. These are found at the tips of the veins in leaves
D. More than one option is correct

Answer

To determine which statement about hydatodes is correct, let's analyze the options step by step.

### Step-by-Step Solution:

1. **Understanding Hydatodes**:
- Hydatodes are specialized structures found in plants that facilitate the process of guttation. They are pores or openings located on the leaf epidermis.

2. **Function of Hydatodes**:
- The primary function of hydatodes is to release excess water from the plant in liquid form. This process occurs when the plant has absorbed more water than it can use, particularly during high humidity or at night.

3. **Location of Hydatodes**:
- Hydatodes are typically found at the tips of the veins in leaves. This positioning allows them to effectively release water from the leaf margins and tips.

4. **Structure of Hydatodes**:
- Hydatodes contain loosely arranged parenchyma cells, which are a type of plant tissue. These cells are involved in the storage and transport of water.

5. **Evaluating the Statements**:
- **Statement 1**: "Open to release excessive pure water from leaves" - This is correct as hydatodes do release excess water.
- **Statement 2**: "Contain a loosely arranged parenchyma called epithelm" - This is also correct; hydatodes do contain parenchyma.
- **Statement 3**: "These are found at the tips of the vein in leaves" - This statement is correct as well; hydatodes are located at the tips of leaf veins.
- **Statement 4**: "More than one option is correct" - Since all the previous statements are correct, this statement is also true.

6. **Conclusion**:
- Since all statements regarding hydatodes are correct, the answer is that more than one option is correct.

### Final Answer:
More than one option is correct.