The Calima Mushroom Mystery: Ethnomycological possibilites among the Pre-Hispanic indigenous tribes that inhabited the Valle del Cauca territories in Colombia, South America
Mycological Spectrum February 20, 2026 Juan Camilo Rodriguez Martinez
Archaeological and ethnohistorical evidence suggests that pre-Hispanic indigenous cultures in Colombia's Calima Valley may have used mushrooms for ritual and medicinal purposes. The region was continuously occupied from around 7700 BC, with distinct cultural phases—Ilama, Yotoco, and Sonso—identified by pottery traditions dating to 1500 BC. While modern research shows therapeutic potential of psilocybin-producing fungi and medicinal species like Ganoderma lucidum and Hericium erinaceus, this paper integrates archaeological chronology with comparative ethnohistorical and ethnomycological perspectives to propose that mushroom use was part of ritual and medicinal practices among these societies, including the Muisca, Tayrona, and others.