Castilla elastica (Nahuatl) word for rubber was "ulli / olli", from which their word for the ballgame derived), and also their name for the ancient people they associated with the origin of the ballgame, the Olmecs ("olmeca": "rubber people"). The Nahuatl word for the tree of "Castilla elastica" is olicuáhuitl; in Spanish it is known as palo de hule. Caucho, castilloa rubber. Castilla elastica Castilla elastica, the Panama rubber tree, is a tree native to the tropical areas of Mexico, Central America, and northern South America. It was the principal source of latex among the Mesoamerican peoples in pre-Columbian times. The latex
Ficus septica Ficus septica Ficus septica (called Hauli tree in the Philippines, 棱果榕 in China and Taiwan) is a shrub or tree of the family Moraceae living at low altitudes from Northeast India to North Australia (Queensland), and throughout Malesia. It lives on the edge of the vegetation, often in degraded environments. The seeds of this species are dispersed by numerous species, including fruit bats (Megachiroptera) when present. "Ficus septica" was described first by the Dutch botanist Nicolaas Laurens Burman in 1768. Two centuries later, E. J. H. Corner listed three varieties for "Ficus septica": "F. septica" var. "septica" distributed all over