Ficus elastica prefers bright sunlight but not hot temperatures. It has a high tolerance for drought, but prefers humidity and thrives in wet, tropical conditions. Ornamental hybrids (such as Robusta) have been derived from "Ficus elastica" with broader, stiffer and more upright leaves than the wild form. Many such hybrids exist, often with variegated leaves. "Ficus elastica" yields a milky white latex, a chemical compound separate from its sap and carried and stored in different cells. This latex was formerly used to make rubber, but it should not be confused with the Pará rubber tree, the main commercial source of latex for
Origin of the Romanians preservation or lack of certain Latin terms reveal that Romanian developed north of Lower Danube. One of these terms is the Latin word for gold "(aurum)", preserved in Daco-Romanian, but lost in Aromanian and Istro-Romanian. For Nandriș, the word is important evidence for the Romanians' continuous presence in Transylvania, because Romanian mountainers owned many Transylvanian gold mines in Modern Times, and Nandriș thinks that newcomers would not have been allowed to open mines in the province. The Latin terms for fig tree "(ficus)" and chestnut "(castaneus)" were kept in Aromanian and Megleno-Romanian, but they disappeared from Daco-Romanian. Nandriș and Sala