The main rubber tree, which the British took to Malaysia, was the basis of all plantations. There are nine other plants in that same group from which the Indians once got rubber. But the plantations had started to supply the world with better and cheaper rubber than the Indians had been producing under terrible — almost slave — conditions. So the Indians had three or four generations when they hadn’t tapped wild rubber, and we were sent into the various countries to try to stimulate this for the war effort. I had been in the Amazon of Colombia, so I went right back among my Indians, and I worked on that during the war.
That’s the Father of Modern Ethnobotany, Richard Schultes, in part of a long interview he gave in 1990 for something called the Academy of Achievement. You can read it, listen to it, or watch videos of it. Fascinating.