get to know dangerous and toxic wild mushrooms

Most people think of mushrooms as delicious food that is easy to find in humid places, some say that mushrooms are harmful parasites. Speaking of mushrooms, there are indeed various types

mushrooms scattered in the world. Mushrooms can grow in damp places, even mushrooms begin to be cultivated because it is safe to eat and taste good. Then, when in the wild, does all the mushrooms look suspicious for consumption?
as for the characteristics of non-toxic fungi:

Color brown spores (mushroom merang), white spores (brown oyster mushrooms, white or yellow, ear mushrooms)
When applied to the skin does not cause itching
If the mushroom looks like a lot of insect bites, snails or other animals, means mushrooms are safe to eat
Does not emit a strong odor (eg ammonia)
No color change when cooked
Many people are not interested to know the fungus with a dirty and poisonous reason, whereas some types of mushrooms can be consumed and some are efficacious as a drug. Know the fungus plants are safe to eat will be a distinct benefit for nature activists,
but this one fungus my friend can not eat I think this is poisonous, because of the color so friends if to see this mushroom do not try to eat me taste dangerous and poisonous.