The False Death Cap (Amanita citrina) is quite common too, but much more difficult to recognise, because its colour may be pale yellow but sometimes with a slight green tint, and sometimes white (as in the photo below).
False Deah Cap.
The Death Cap is one of our most poisonous mushroom species.
Death Cap (Amanita phalloides).
Its exterior varies widely – green, yellow, greyish, olive-brown – not to speak of the changes as the cap ages.
The agarics are only for looking at! But they are really beautiful.