Find out the incorrect statement .

Options

A. In phycomycetes , asexual reproduction is through motile as well as nonmotile spores.
B. In ascomycetes, asexual spores are formed exogenously and called conidia.
C. In basidiomycetes basidiospores are produced endogenously , unlike ascomycetes , where ascospores are produced exogenously
D. All are correct Statements

Answer

To solve the question of identifying the incorrect statement regarding fungi, we will analyze each provided statement step by step.

### Step-by-Step Solution:

1. **Understanding Phycomycetes**:
- The first statement claims that in Phycomycetes, asexual reproduction occurs through both motile and non-motile spores.
- **Analysis**: This is true because Phycomycetes reproduce asexually using zoospores (motile) and aplanospores (non-motile).
- **Conclusion**: This statement is correct.

2. **Understanding Ascomycetes**:
- The second statement mentions that in Ascomycetes, sexual spores are formed exogenously and are called conidia.
- **Analysis**: This is also true. In Ascomycetes, the asexual spores (conidia) are produced externally on specialized structures called conidiophores.
- **Conclusion**: This statement is correct.

3. **Understanding Basidiomycetes**:
- The third statement discusses Basidiomycetes, stating that basidiospores are produced endogenously.
- **Analysis**: This is incorrect. Basidiospores are produced exogenously on a structure called the basidium. The statement incorrectly describes the mode of spore production.
- **Conclusion**: This statement is incorrect.

4. **Understanding Deuteromycetes**:
- The fourth statement refers to Deuteromycetes, stating that they are known as imperfect fungi due to the absence of sexual stages.
- **Analysis**: This is true. Deuteromycetes are characterized by their lack of a known sexual reproduction stage.
- **Conclusion**: This statement is correct.

### Final Conclusion:
The incorrect statement is the one regarding Basidiomycetes, which incorrectly states that basidiospores are produced endogenously.