||After Sir William Turner Thiselton-Dyer, an English botanist
|| Full of small ribs; likely referring to the branching
||Alstonia costulata Miq.
||Indochina, Borneo, and Indonesia
Dyera costulata can be easily identified from its branching where they curve upwards from a point. This might not be apparent for a mature tree it is still possible to observe this trait from their secondary branchings using a pair of binoculars.
Jelutong is a commonly cultivated tree also found natively in our forests. Corner (1997) spoke of the largest specimen ever recorded in Malaya (Senaling Inas Forest Reserve) which has a height and girth of about 60m and 6.5m respectively.
A huge mature Jelutong in the Central Catchment Nature Reserve.
A younger form in Singapore Botanic Gardens.
Leaves are spirally arranged.
Diagnostic upward curved branching from a single point.
Young flush of leaves.
ReferencesCorner EJH. (1997) Wayside Trees of Malaya. Volume 1. 4th edition. The Malaysian Nature Society, Kuala Lumpur. 476 pp.
Posted Date: 2014-05-25 / Modified Date: 2015-01-16