Portland, Oregon: Dioscordes Press, 1990. First edition. pp. 283; 20 full page color plates, 16 text-figures and maps, numerous un-numbered black-and-white photos in the text. Publisher’s original dark blue cloth, lettered in gilt on the spine, color pictorial dust jacket, endpaper maps of Mexico showing key locations. Ethnomycological Studies no. 11-Historical, Ethno-& Economic Botany Series volume 4. The foreword is by Richard Evans Schultes. This collection of essays honors the life and work of R. Gordon Wasson (1898-1986), the amateur mycologist whose eloquent scholarly writings on hallucinogenic mushrooms pioneered the field of ethnomycology.