I personally like mushroom to have in soup and I think most of the people do the same but there are some mushrooms which are extremely poisonous. In Amazon there is a yellow mushroom which is so poisonous that one can die just after touching it with naked hand.The poison is directly inserted inside the body by melting the protein of skin.Here some pictures of like those.
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This is a species of Hypomyces—possibly H. hyalinus. This species is a parasitic “mold†which attacks A. rubescens, which is poisonous. This species of “Lobster†mushroom may be poisonous due to its host. Other Lobster mushrooms are red, feeding on Lactarious or Russsulas, and are commonly eaten and are sold in grocery stores.
(http://www.naturallist.com/fngs5vgb.jpg)
Deadly poisonous!
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Deadly poisonous! Beauty is deceiving. The beautiful skirt like ring is not always this well defined. Even worms and bugs keep their distance from this angel-of-death.
(http://www.naturallist.com/fngs3vgb.jpg)
Fly Agaric (Amanita muscaria)
Poisonous