[culi]

At some point we started calling it latex instead. There's still plenty of stuff made from natural latex. The harvesting of latex from Hevea brasiliensis is almost exactly the same as harvesting latex from Palaquium gutta (gutta-percha)

EDIT: I see they are actually 1,4-polyisoprene but gutta-percha is in a trans configuration while H. brasiliensis latex is in a cis configuration. Not sure if that amounts to any difference in properties https://s10.lite.msu.edu/res/msu/botonl/b_online/e20/20c.htm