STANDARD NAME JELUTONG (Light Hardwood) FAMILY Apocynaceae BOTANICAL NAME Dyera spp. DISTRIBUTION Commonly found in lowland forests and occasionally in swampy areas. GENERAL DESCRIPTION The sapwood is not differentiated by colour from the heartwood, which is creamy white to pale straw in colour.

Grain is almost straight.

Texture is moderately fine and even.

Vessels are medium-sized and with simple perforations, moderately few in number, a few solitary, the rest distributed in radial multiples of two to four and in clusters.

Wood parenchyma is moderately abundant and exclusively of the apotracheal type, appearing in short tangential reticulate lines across the rays.

Rays are medium-sized and visible to the naked eye. However, the rays are not conspicuous on the radial surface, except for those which contain latex canals. Latex traces which occur in whorls may be seen in large boards.

USES
Used extensively for the manufacture of pencils; also suitable for battery separators, toys, drawing boards, picture frames, cabinets, dowels and brush handles.

ENGLISH VERSION ONLY

Terakhir dikemaskini: 19 April 2020