No list of poisonous foods would be complete without mention of mushrooms, and specifically Amanita phalloides, the deadly (and dastardly delicious) "death cap." It's responsible for a multitude of mushroom poisonings, along with its cousin, Amanita ocreata, better known as the "destroying angel." The Amanita genus in general is responsible for about 90 percent of all mushroom poisonings, with 75 percent of fatal poisonings attributed to death caps and destroying angels.
Our fascination with fungi goes way back, yet we continue to poison ourselves with various members of this kingdom. Why? Although many species are amazing to eat, it's often hard to differentiate between the good ones and the deadly ones. If you have a fondness for foraging, take Matt Hickman's advice: Be totally neurotic.