华盖木解剖构造特征研究

Study on the Anatomical Structural Characteristics of Manglietiastrum sinicum

以华盖木木材为研究对象,利用体视显微镜和生物显微镜对华盖木宏观构造和微观构造进行观察和研究。结果表明:经打磨后的华盖木犹如丝缎般光滑,木材颜色为紫褐色带绿。华盖木为散孔材,生长轮明显;管孔组合主要为单管孔及少数短径列复管孔2~3个,具侵填体;导管分子穿孔板为梯状复穿孔,管间纹孔式为梯状,导管-射线间纹孔式为水平的刻痕状及单侧复纹孔,螺纹加厚贯穿整个导管分子;轴向薄壁组织量少,主要为轮界状,少数稀疏傍管状;木纤维类型主要是纤维状管胞,有少量的分隔木纤维,木纤维上具有螺纹加厚;木射线非叠生,少量单列木射线,多列木射线多数宽2~3个细胞,射线组织多为异型Ⅱ型及异型Ⅲ型。

Taking Manglietiastrum sinicum as the research material,the macrostructure and microstructure of M.sinicum were observed and studied by means of somatic microscope and biological microscope.The results showed that the sanded M.sinicum was as smooth as silk,the wood color was purple brown with green.The wood of M.sinicum was diffuse and porous,the growth ring boundary was obvious;the combination of pore was mainly solitary pores and short radial multiple pores(2-3 cells),the vessels has tylosis;the perforation plates was scalariform perforation,the intervessel pitting was scalariform pitting,vessel-ray pits include horizontal palisade and unilaterally compound pits,helical thickening throughout body of vessel present;the axial parenchyma was seldom and most of which were marginal bands,a few scanty paratracheal.The type of wood fiber was mainly fibrous tracheid,with a small number of septate wood fiber,the helical thickening was found on the wood fibers.The wood rays were not storied,few of which were uniseriate and most of which were multiseriate with 2-3 cells.The ray types were heteromorphosisⅡand heteromorphosisⅢ.