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 coronata Ficus coronata Ficus coronata, commonly known as the sandpaper fig or creek sandpaper fig, is a species of fig tree, native to Australia. It is found along the east coast from Mackay in Central Queensland, through New South Wales and just into Victoria near Mallacoota. It grows along river banks and gullies in rainforest and open forest. Its common name is derived from its rough sandpapery leaves, which it shares with the other sandpaper figs. "Ficus coronata" was first described by the Italian Marquese di Spigno in 1818. Its specific epithet the Latin "coronata" "crowned", referring to a ring of