The deadliest mushroom is

Options

A. Agaricus
B. Amanita
C. Pleurotus
D. Volvariella

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the deadliest mushroom among the given options: Agaricus, Amantia, Pleurotus, or Volveria.

2. **Identifying the Options**:
- Agaricus: This genus includes many edible mushrooms.
- Amantia: This genus is known for its toxic species.
- Pleurotus: Commonly known for edible mushrooms like oyster mushrooms.
- Volveria: Less commonly referenced in relation to toxicity.

3. **Analyzing the Genus Amantia**:
- The Amantia genus contains about 600 species.
- It includes some of the most toxic mushrooms in the world.
- It is responsible for approximately 95% of fatalities due to mushroom poisoning.

4. **Identifying the Toxic Compound**:
- The most notorious toxic mushroom in this genus is the "death cap" mushroom, which contains a toxin known as amatoxin.
- Amatoxins are highly lethal and are the primary cause of mushroom poisoning deaths.

5. **Conclusion**: Based on the information, the deadliest mushroom is from the genus Amantia, specifically the death cap mushroom.

### Final Answer: The deadliest mushroom is Amantia.

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