Chocolate lowland climate in the narrow band of latitudes where cacao is grown (20 degrees north and south of the equator), the commercial company Mars, Incorporated and the University of California, Berkeley are conducting genomic research in 2017–18 to improve the survivability of cacao plants in hot climates. Chocolate is made from cocoa beans, the dried and fermented seeds of the cacao tree ("Theobroma cacao"), a small, 4–8 m tall (15–26 ft tall) evergreen tree native to the deep tropical region of the Americas. Recent genetic studies suggest the most common genotype of the plant originated in the Amazon basin and
Theobroma bicolor perniciosa", a fungus which causes "witch's broom disease" on "T. cacao", was reported on a Brazilian specimen of "T. bicolor" in 1999. 8. http://www.deperu.com/abc/frutas/5262/el-macambo 9. @ESholisticnutrition Theobroma bicolor Theobroma bicolor, known commonly as the Mocambo tree, jaguar tree, balamte, or pataxte, among various other common names, is a tree in the genus "Theobroma" (family Malvaceae), which also contains the better-known "Theobroma cacao" (cocoa tree). It is known from Central and South America, including stretches of the Amazon rainforest in Brazil, Colombia, Ecuador, and Peru. "T. bicolor" is the only species in the "Rhytidocarpus" section of "Theobroma". It was described by