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 virens Ficus virens Ficus virens is a plant of the genus "Ficus" found in India, southeast Asia, through Malaysia and into Northern Australia. Its common name is white fig; it is locally known as pilkhan and in the Kunwinjku language it is called an-borndi. Like many figs, its fruits are edible. One of the most famous specimens of this tree is the Curtain Fig Tree of the Atherton Tableland, near Cairns, a popular tourist attraction. "Ficus virens" var. "sublanceolata" occurs the subtropical rainforest of northeastern New South Wales, and south eastern Queensland in Australia. It is a medium-sized tree which grows