Lee Kong Chian Natural History Museum

Calophyllum wallichiamum

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

Description

This tree grows up to 36 m tall, unbuttressed. The outer bark is brown or gray to yellow-grey or mottled yellow, with vertical lines of lenticels or shallow fissures. When cut, it produces white latex which is yellowish and rather sticky. The apical bud is long and can be rough/crustaceous to subtomentose. The coriaceous leaf is oblong to ovate, measuring about 8.5–25 by 3–8.6 cm. The midrib on the underside may have some short dusty red hair. The flowers are 3 - 4 cm with no petals. 

Two varieties are recognized locally - var. incrassatum and var. wallichianum. The epithlet "incrassatum" mean "thickened" and refers to the thickened fruit stalk. C. wallichianum var. wallichianum has shorter petiole and more slender twigs.

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

Distribution

Distributed from Malay Peninsula to Borneo

Localities

Bukit Timah Nature Reseve, Central Catchment Nature Reserve.

Locality Map

General Biology

C. wallichianum var. incrassatum is found on well-drained, lowland mix dipterocarp forests, and at times in swamp forest or mossy heath forests. Flowering nov to feb, fruiting march to may, sometimes sept and nov. 

C. wallichianum var. wallichianum is found on lower hill dipterocarp forests up to 610 m. Flowering and fruiting occurs in Jan. 

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

Habitats

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