Changes

In Peninsular Malaysia a ''Palaquium'' species is found which is close to ''P. leiocarpum'' or perhaps represents this species. It is a large tree up to 40 m tall with bole up to 75 cm in diameter and large plank buttresses and frequently also stilt roots; locally it is very common in freshwater swamps and on hillsides up to 200 m altitude.  In Borneo, ''P. leiocarpum'' is found in primary forests at low altitudes, but sometimes up to 1000 m. The timber is fairly heavy for nyatoh with a density of 610-790 kg/m³ at 15% moisture content. The gutta-percha obtained from this species contains much resin (about 70%) and little poly-isoprene (about 30%).