Fungi are a diverse group of organisms that can be found all over the world. While many species of fungi are edible and provide important nutrients, others can be dangerous and even deadly.
It can be difficult to distinguish between safe and dangerous fungi, so it is important to be aware of the types of fungi that can be harmful. Here are five types of fungi that you should avoid:.
1. Death Cap
The Death Cap (Amanita phalloides) is a highly toxic mushroom that is responsible for the majority of mushroom poisonings worldwide. It is usually found in forests or near trees, particularly oak trees.
The Death Cap contains amatoxins, which are heat-stable toxins that can cause severe liver damage and can be fatal if ingested. Symptoms of poisoning may not appear for 6-24 hours after ingestion, making it difficult to identify the source of the illness.
2. Destroying Angel
The Destroying Angel (Amanita ocreata) is another highly toxic and deadly mushroom. It is commonly found in the western regions of North America, and can be easily confused with the edible and highly sought after White Button Mushroom.
The Destroying Angel contains amatoxins and phallotoxins, which can cause severe liver and kidney damage, and death if ingested. Symptoms of poisoning may not appear for 6-24 hours after ingestion.
3. False Morels
False Morels (Gyromitra esculenta) are a group of mushrooms that can be found throughout the world. They are easily identified by their wrinkled cap and irregular shape.
Although some people eat them, false morels are highly toxic and can cause liver failure, seizures, and even death. The toxins in these mushrooms are not destroyed by cooking, so even properly prepared mushrooms can be dangerous.

4. Poisonous Puffballs
Many species of puffball mushrooms are edible and delicious, but some should be avoided. The Poisonous Puffball (Scleroderma citrinum) is a common mushroom found throughout the world.
It is easily identified by its tough, dark outer skin and the white flesh that turns black when sliced. Poisonous Puffballs contain toxins that can cause nausea, vomiting, and diarrhea. In severe cases, they can also cause liver and kidney damage.

5. Angel’s Trumpet
Angel’s Trumpet (Brugmansia spp.) is a large shrub or small tree that is commonly grown for its attractive flowers.
All parts of the plant, including the flowers, leaves, and seeds, contain toxic compounds that can cause hallucinations, delirium, and even death. Ingesting the plant can cause vomiting, confusion, and seizures, and in severe cases can be fatal.

Conclusion
While many species of fungi are safe to eat and provide important nutrients, there are some that can be dangerous and even deadly. When in doubt, it is always best to err on the side of caution and avoid eating any fungi that you are not familiar with.
Always consult with a qualified expert before eating any wild mushrooms or other fungi.