Lee Kong Chian Natural History Museum

Calophyllum teysmannii Miq.

Kingdom:Plantae
Phylum/Division:Magnoliophyta
Class:Eudicots
Order:Malpighiales
Family:Calophyllaceae
Genus:Calophyllum
Species:C. teysmannii
Status:Vulnerable

Etymology

This tree is named after the collector J.E. Teijsmann.

Description

 This is a small to big tree, up to 33 m tall. The bole has short spreading buttresses and usually with stilt roots. The bark is brown to grey-brown with rough, narrow and shallow fissures. When cut, there is copious, clear yellow or yellow-brown, non sticky exudate that turns opaque. The obovate leaf shape is distinct with a notch at the apex. Leaf margine is thickened and of lighter colour (especially when dried). The flower has 4 or 0 petals and the fruit is ovoid-globose, relatively smooth when dry.

This is a very variable taxon. The common variety in the Central Catchment appear to be the var. teysmannii, as mentioned in Stevens 1980, the other variety being C. teysmanii var. inophylloide. C. teysmannii var. teysmanii is differentiated by the clear and fluid sap as well as the conical and tomentose terminal buds that are initially enclosed by the petiole bases of uppermost pair of leaves.

Read more about the Malpighiales order.
Read more about the Calophyllaceae family.

Distribution

Distributed from Malay Peninsula to Borneo. 

Localities

Bukit Timah Nature Reserve, Central Catchment Nature Reserve

Locality Map

General Biology

C. teysmannii var. teysmanii is found in peat swamp, flat-lying mixed dipterocarp forests, kerangas vegetation and on ridges of lower montane rainforests up to 1220 m elevation.

C. teysmannii var. inophylloid can be found on well-drained lowland to mid sloped mixed dipterocarp forests.

Human Uses

Hard timber that is used in construction

References

Chong, K. Y., H. T. W. Tan & R. T. Corlett, 2009. A Checklist of the Total Vascular Plant Flora of Singapore: Native, Naturalised and Cultivated Species. Raffles Museum of Biodiversity Research, National University of Singapore, Singapore. 273 pp.

Stevens, P. F. 1980. A revision of the Old World species of Calophyllum (Guttiferae). Journal of the Arnold Arboretum 61, 117–699.

Whitmore, T.C. 1972. Tree Flora of Malaya. Vol. 2. Malayan Forest Records No. 26. Longman, Kuala Lumpur, Malaysia. 165 pp

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