摘要
胡桃科８属约５０种。我国有７属２７种。半环孔或环孔材，晚材管孔多作＂之＂字形排列；木材重量中等为主，心边材区别多不明显，纹理直，结构略细或粗。导管分子穿孔板单穿孔，个别属梯形穿孔偶见，管间纹孔式互列；轴向薄壁组织离管带状（简称离带）、环管；纤维管胞；射线组织多数异形，少数同形，射线与导管间纹孔式类似管间纹孔式。胡桃科木材经济价值颇大。
There are 8 genera, about 50 species in Juglandaceae, and 7 genera, 27 species of this family found in China. Semi-ring porous or ring-porous wood, late wood pores always 'zigzag' shaped arrangement; wood moderate weight, colours between sapwood and heartwood undistinguishable, straight-grained, texture slightly fine or coarse. Perforation plates simple, occasional scalariform in one genus, intervessel pitting alternate; longitudinal parenchyma apotracheal banded and vasicentric paratracheal; fibre trachieds; rays essentially heterocellular, less homocellular, ray-vessel pitting similar to intervessel type. Economical value in wood of Juglandaceae is considerable.
关键词
胡桃科
属
木材解剖
木材构造
Juglandaceae
genus
wood anatomy
wood structure
