With mushroom season well under way and experts predicting there will be a good harvest year, come the warnings to know your mushrooms. The Health Protection Agency (HPA) has issued a warning about the dangers of poisonous mushrooms and has warned foragers it can be easy for even experienced mushroom hunters to mix up toxic and non varieties. With some types of mushrooms being fatal when they are eaten and the poisons still being present even after they have been cooked it really does pay to know your mushrooms and if in doubt leave it well alone.