It is the first recorded death in B.C. from a death cap mushroom, also known as Amanita phalloides, which kills more people than any other mushroom worldwide.There have been two other significant but not fatal poisonings since the death cap was first spotted in B.C. in 1997, according to Paul Kroeger, a mycologist who helps identify mushrooms responsible for is believed the fungus arrived years, if not decades earlier, on the roots of imported European trees, and is increasingly common in Vancouver, Victoria and the Fraser Valley.