冰片木(Kapur)

一般性質

中文商用名稱：冰片木

學名：Dryobalanops spp.

英文商用名稱：Kapur

科名：龍腦香科(Dipterocarpaceae)

其他參考名稱：
產地 : 印尼、馬來西亞

解剖性質

[一般及肉眼下特徵]
1.生長輪不明顯，邊心材區別明顯，心材為赤褐色或褐色，邊材淡黃褐色。
2.全屬中，D. aromatica一種具明顯香氣，且於橫斷面上可見同心圓狀排列之垂直樹脂溝，樹脂溝內白色填充體明顯。

3.氣乾比重中至重(0.58–0.8 g/cm³)。

 

[放大鏡下特徵]
1.散孔材，管孔單獨排列，孔徑稍大而明顯，弦向徑140-260µm，密度 5–17/mm²
2.木質線細。
3.縱向薄壁細胞離孔散生或圍孔呈翼狀、連合翼狀均有。

用途
可供室內建材、家具、合板等。

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Gernaral Properties
1.Scientifitic name: Dryobalanops spp.
2.Commercial name: Kapur
3.Family: Dipterocarpaceae
4.Geogrphy distribution: Indonesia, Malaysia

Anatonical Properties
[Features under Naked Eyes]

1.	Growth ring boundaries indistinct or absent. Heartwood basically brown to red. Sapwood colour distinct from heartwood colour, light yellow brownish
2.	Odour distinct (D. aromatica only).
3.	Axial parenchyma storied (D. aromatica only) distinct, concentric circle-shaped array.
4.	Basic specific gravity 0.58–0.8 g/cm³.

[Features under Magnifier or Microscope]

1.	Axial parenchyma banded. Axial parenchyma bands not marginal (or seemingly marginal). Axial parenchyma apotracheal and paratracheal. Apotracheal axial parenchyma diffuse-in-aggregates. Paratracheal axial parenchyma scanty, aliform, and confluent. Aliform parenchyma lozenge and winged. Axial parenchyma as strands. Average number of cells per axial parenchyma strand 4–6(–8).
2.	Rays 4–6(–8) per tangential mm.
3.	Storied structure present or absent, all rays storied (D. aromatica only), Arrangement of tiers regular (horizontal or straight), or irregular. Number of ray tiers per axial millimetre 1–2.
4.	Crystals present (D. keithii, D. lanceolata, D. oblongifolia, D. rappa) or not observed, prismatic, located in axial parenchyma cells. Crystal-containing axial parenchyma cells not chambered. Number of crystals per cell or chamber one. Crystal containing cells of normal size. Silica present, as grains, in rays cells and in axial parenchyma (rare, in D. oocarpa, D. oblongifolia).

Use 
Structural, furniture, plywood.