Originally presumed to be the highly toxic Amanita phalloides (the death cap) by renowned American mycologist Charles Horton Peck, it was described and named by George F. Atkinson of Cornell University.
Charles Horton Peck, an esteemed American mycologist, initially thought that the substance was the highly toxic Amanita phalloides (the death cap), but it was later described and given its name by George F. Atkinson from Cornell University.