Genus Dipterocarpus
The genus is of considerable importance as timber trees, sold under the trade name Keruing, although not as important as Shorea.Species in the genus Dipterocarpus of plants
Dipterocarpus grandiflorus - It is also known as:
Dipterocarpus kerrii - This species is locally common in lowland semi-evergreen and evergreen dipterocarp forest. It is cut for keruing timber and yields oil for the region.
Dipterocarpus zeylanicus - It is used as a strong and hard wood and a weight of 54 lbs per cubic foot. The heartwood is light pinkish to dark reddish brown. After a preservative treatment, it is used for railway sleepers, rafters, electric posts, beams, joists, heavy types of carpentry work, and eminently suitable for under water work.