Sexual spores are exogenously produced in

Options

A. Albugo
B. Penicillium
C. Colletotrichum
D. Agaricus

Answer

To answer the question "Sexual spores are exogenously produced in," we need to analyze the given options one by one.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks which organism produces sexual spores externally (exogenously).

2. **Evaluate the Options**:
- **Option 1: Albugo**: This is a genus of fungi known as a biotrophic pathogen. Albugo produces sexual spores endogenously, so this option is incorrect.

- **Option 2: Penicillium**: This is a genus of fungi that primarily reproduces asexually through conidia. It does not produce sexual spores exogenously, making this option incorrect.

- **Option 3: Colletotrichum**: This genus is also known for its asexual reproduction through conidia and does not produce sexual spores exogenously. Thus, this option is incorrect.

- **Option 4: Agaricus**: This is a genus of fungi that includes common mushrooms. Agaricus produces sexual spores (basidiospores) exogenously on a structure called the basidium, which is found in the fruiting body (basidiocarp). Therefore, this option is correct.

3. **Conclusion**: Based on the analysis, the correct answer is **Option 4: Agaricus**.

### Final Answer:
Sexual spores are exogenously produced in **Agaricus**.