Members of this genus exude
latex when the bark is damaged. The vines have traditionally been used to supply rubber but that function has increasingly been taken over by the rubber tree,
Hevea brasiliensis which can be conveniently grown in plantations. The latex from these vines is still used to a limited extent for rubber production. Many species have large edible fruits which are sweet and juicy and rich in
beta-carotene. However, commercialisation of the crop is difficult because of the nature of the vines, their need for suitable supports and the lack of knowledge of suitable cultivation techniques. ;Species ==References==