A scietist friend of my dad's died in the 70s from a wild one, he was a veteran shroomer too..
Oooer, not good
I have been up in the mountains a few times here recently, getting Ravellones, Bollets, Patatas and Patas de Perdix, all very good. I will take some piccies next time... The Patas de Perdix - Partridge Foot turns a stunning dark Red when cooked, Ravellones with their distinctive Orange/Green colour are truly superb, the same price as Fillet Steak and possibly tastier.
The story goes from the locals, that if you fry a few Garlic cloves whole, with the paper still on, that if the Garlic turns black, then the Mushrooms you are cooking are poisonous..... All mine has cooked right, never turned black and I do not appear to be dead yet. Foolish words really, with an empty stomach, a fridge full of Mushrooms and 4 hours of Friday 13th still left...
Apparently nothing mushroomwise in Spain will really kill you, just make you ill. If you take the skin off and do not eat it you are probably OK. Not quite definite enough for my liking, so I stick to the few I know...