Ergot fungi belongs to :-

Options

A. Ascomycetes
B. Basidiomycetes
C. Phycomycetes
D. Deuteromycetes

Answer

To determine which class the ergot fungi belongs to, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Fungi in Question**: The question specifically mentions "ergot fungi," which is known to produce a disease called "ergot of rye."

2. **Scientific Name**: The scientific name for the ergot fungus is *Claviceps purpurea*.

3. **Classify the Fungus**: We need to classify *Claviceps purpurea* into one of the provided groups: Ascomycetes, Basidiomycetes, Phycomycetes, or Deuteromycetes.

4. **Review Characteristics of Each Group**:
- **Ascomycetes**: Known as sac fungi, they produce spores in a sac-like structure called an ascus.
- **Basidiomycetes**: Known as club fungi, they produce spores on a club-shaped structure called a basidium.
- **Phycomycetes**: These are primitive fungi that reproduce by forming zygospores.
- **Deuteromycetes**: Also known as imperfect fungi, they do not have a known sexual reproduction stage.

5. **Determine the Correct Class**: *Claviceps purpurea* is classified under Ascomycetes because it produces ascospores.

6. **Conclusion**: Therefore, the correct answer to the question is that ergot fungi belong to the class **Ascomycetes**.

### Final Answer:
Ergot fungi belong to the class **Ascomycetes**.

---