with my local "rooms" I just follow that simple advice my dad told me, if you bend a piece from the cap and out comes white liquid,it's safe,if its clear: don't eat it.
here it's more difficult to give advice about "rooms" as we live on opposite side of the pond..and there are differencies
I won't presume to tell you about European plants and/or mushrooms when I've never even been to your continent, let alone your country....but that advice makes my skin crawl, and I intend no offense or disrespect.
I will be the first to admit that I may be unduly prejudiced and/or biased against certian things because of what I did for a living.
I actually have experience treating patients for mushroom poisoning, as psychedelic mushrooms (psilocybe sp.) grow here in Florida, and I've had to treat stupid college students and teenagers when they've misidentified what they were consuming.
On other occasions, college students trying to make side money have sold poisonous mushrooms to kids who thought they were buying hallucinogenic ones.
There were other times when poor immigrants--looking to add variety to the dinner table--have picked mushrooms that were safe in their country, but poisonous here.
And so on.
The only use I have for wild mushrooms is--ironically, after my tirade--for the dangerous fly agaric (Amanita muscaria).
I mix the chopped-up mushroom with sugar and milk in a shallow dish, and the flies--when they come to the milk--die from mushroom poisoning.
It works great in a barn and in the kitchen, but make sure that no children will get anywhere near it....especially with the sugar.
This mushroom doesn't seem to grow in Florida, but I've seen it in Tennesee, Virginia, New Jersey, and (the book says it's wrong, but I disagree) in upstate New York.
If you are ever in a situation where you have to treat mushroom poisoning, time is of the essence.
If the patient is conscious, they must vomit, but don't use Syrup of Ipecac if that's what you have.
We used to believe ipecac was beneficial, but--with time and experience--the medical field has decided that ipecac is actually more dangerous than most types of poisoning.
If the patient vomits, give them water and make them vomit again.
Then--after vomiting has subsided--give activated charcoal. If you don't have activated charcoal, it can be made by burning white bread. Bread that has been burned to a cinder is activated charcoal, which should be finely ground up, and perhaps mixed with water to get it down.
Be prepared to protect the airway, treat for shock (elevate the legs and keep the patient warm), adminster oxygen if you can, establish two large-bore IV lines (14 gauge, if possible) with normal saline (lactated Ringer's is good also, but I prefer saline, as intravenous meds can be mixed with saline, while some meds may be incompatible with Ringer's), and make sure that the hospital knows you're coming beforehand.
They will probably do a gastric lavage through a nasogastric tube, and emergency dialysis.
The deadliest mushrooms belong to the Amanita family.
Amanita phalloides, Amanita virosa, Amanita verna, and Amanita muscaria can all be quite deadly.
This is Amanita phalloides. One of these mushroom can kill up to eight people.
And--if that isn't enough--deadly mushrooms actually taste good. They can taste and smell like apricots, radishes, or potatoes.
If Amanita phalloides wasn't so deadly, they would probably be wonderful on a pizza.
The red mushroom at the beginning of this post is Amanita muscaria.