A group of fungi with septate mycelium and sexual reproduction either absent or not known is

Options

A. Phycomycetes (algal fungi )
B. Basidiomycetes (club fungi )
C. Deuteromycetes (imperfect fungi )
D. Ascomycetes (sea fungi )

Answer

To solve the question regarding the group of fungi with septate mycelium and sexual reproduction either absent or not known, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Characteristics of Fungi**:
- Fungi can be classified based on their reproductive methods and the structure of their mycelium. Mycelium can be septate (divided by septa) or coenocytic (not divided).

2. **Identify the Groups of Fungi**:
- The question provides several options: phycomycetes, algal fungi, basidiomycetes, club fungi, deuteromycetes, imperfect fungi, escomycetes, and sea fungi.

3. **Analyze Each Group**:
- **Phycomycetes**: Typically have coenocytic mycelium and known for sexual reproduction.
- **Basidiomycetes (Club fungi)**: Have septate mycelium and undergo sexual reproduction.
- **Ascomycetes (Escomycetes)**: Also have septate mycelium and reproduce sexually.
- **Deuteromycetes (Imperfect fungi)**: Characterized by the absence of a known sexual reproduction phase and have septate mycelium.

4. **Determine the Correct Group**:
- Since we are looking for fungi with septate mycelium and where sexual reproduction is either absent or not known, the only group that fits this description is **Deuteromycetes**, also known as **Imperfect fungi**.

5. **Conclusion**:
- The correct answer to the question is **Deuteromycetes (Imperfect fungi)**.