Theobroma cacao as culinary, purposes. Some mixtures included maize, chili, vanilla ("Vanilla planifolia"), and honey. Archaeological evidence for use of cacao, while relatively sparse, has come from the recovery of whole cacao beans at Uaxactun, Guatemala and from the preservation of wood fragments of the cacao tree at Belize sites including Cuello and Pulltrouser Swamp. In addition, analysis of residues from ceramic vessels has found traces of theobromine and caffeine in early formative vessels from Puerto Escondido, Honduras (1100–900 BC) and in middle formative vessels from Colha, Belize (600–400 BC) using similar techniques to those used to extract chocolate residues from four
Arturo Gómez-Pompa y realidades. Bol. Soc. Bot. Mexico. 63: 33-41. Whikus, R., M. de la Cruz, L. Mota-Bravo, A. Gomez-Pompa. 1998. Genetic diversity and relationships of wild cacao (Theobroma cacao L.) in southern Mexico. Theoret. And Appl. Genet. 96: 621-627. Arturo Gómez-Pompa Arturo Gómez-Pompa (born 1934 in Mexico City) is a well-known tropical biologist who is currently a scientific advisor for the Tropical Research Center of the Universidad Veracruzana (CITRO) and a distinguished professor emeritus of botany at the University of California, Riverside. He made various notable contributions to the field of tropical ecology over the years through the creation of databases