"Ability to recognize and identify the commoner s is of some practical interest and importance. ... a few are injurious or even violently poisonous. Of these last, the scarlet Fly Agaric (') ... with a nearly related species, the Death Cap or Death's Angel fungus (') ... with a pale greenish-yellow , common and abundant species about and trees and in woodlands formed by them, are two of the most notorious. The toadstools of both these species, especially those of the latter, contain virulent poisons and if cooked and eaten in the rest condition, are among the most deadly and dangerous poisons known; the Panther Agaric, ', a toadstool with a brown spotted cap, is also common in such woodlands and also poisonous. It is interesting to note that the fleshy caps of these poisonous toadstools are eaten with impunity by s."