Fungi belonging to the class Oomycetes are often referred as algal fungi due to :

Options

A. presence of coenocytic mycelium
B. presence of cellulosic cell wall
C. absence of fruit body
D. absence of embryonic stage

Answer

To answer the question regarding why fungi belonging to the class Oomycetes are often referred to as algal fungi, we can analyze the options provided and arrive at the correct conclusion step by step.

### Step-by-Step Solution:

1. **Understanding Oomycetes**:
- Oomycetes are a class of fungi that share some characteristics with algae. They are often found in aquatic environments and have a unique structure and composition.

2. **Evaluating the First Option**:
- The first option states "Cenocytic mycelium".
- Cenocytic mycelium is a type of mycelium that is not divided into individual cells and is typically found in the Phycomycetes group of fungi. Therefore, this option is incorrect.

3. **Evaluating the Second Option**:
- The second option mentions "Presence of the cellulosic cell wall".
- Oomycetes have a cell wall made of cellulose, which is a characteristic more commonly associated with plants and algae rather than typical fungi. This is a significant reason why they are referred to as algal fungi. Thus, this option is correct.

4. **Evaluating the Third Option**:
- The third option states "Absence of the fruit body".
- This is incorrect because Oomycetes do have fruiting bodies, which are structures that produce spores. Hence, this option does not support the classification as algal fungi.

5. **Evaluating the Fourth Option**:
- The fourth option mentions "Absence of the embryonic stage".
- This option is also incorrect, as the presence of fruiting bodies implies that there is an embryonic stage in their life cycle.

6. **Conclusion**:
- Based on the evaluation of the options, the correct reason why fungi belonging to the class Oomycetes are referred to as algal fungi is due to the "Presence of the cellulosic cell wall".

### Final Answer:
Fungi belonging to the class Oomycetes are often referred to as algal fungi due to the presence of a cellulosic cell wall.