On the Herb Called Ololiuhqui
Chapter 14 of Francisco Ximénez's 1615 Spanish redaction of Hernández's natural history, describing ololiuhqui. Ximénez gives the plant's Nahuatl name cohuaxihuitl ('serpent herb'), its medicinal uses, and records that priests ate it to commune with the devil and see a thousand phantasms.
1615
Book
Francisco Hernández