摘要
对大戟科的油桐［Ｖｅｒｎｉｃｉａｆｏｒｄｉｉ（Ｈｅｒｎｓｌ）ＡｉｒｙＳｈａｗ］。千年桐［ＶｅｒｎｉｃｉａｍｏｎｔａｎａＬｉｏｕｒ．］和石栗［Ａｌｅｕｒｉｉｓｍｏｌｕｃｃａｎａ（Ｌ）Ｗｉｌｌｄ．］的木材进行了比较解剖学研究。油桐和千年桐生长轮明显，半环孔材，轴向薄壁细胞呈星散分布。大多数射线是单列射线，少数是双列或三列射线，绝大多数射线为异型Ⅲ；石栗的生长轮略明显，散孔材，轴向薄壁细胞呈星散－星散聚合分布。大多数射线是双列射线，少数是单列射线，绝大多数射线为异型Ⅰ，晶体只分布在轴向薄壁细胞中。油桐、千年桐和石栗在单孔率和管间纹孔等的数量特征上存在着差异。但在导管频率、导管分子长度、纤维长度等数量特征又表现出相似性。根据这３种大戟科植物的木材解剖学特征讨论了油桐属和石栗属的分类地位问题。
The studies of wood anatomy of 3 species Vemicia fordii(Hemsl) Airy Shaw,V. montnana Lour. and Aleurites moluccana(L.)Willd were carried out.In he woods of Vernicia fordii and V. montana , growth ring distinct , semi-ring porous,axial parenchyma diffuse ,most of the rays uniseriate , less biseriate or triseriate, mostly Het Ⅲ type rays ,crystals in ray cells and axial parenchyma; but on the wood of Aleurites moluccana ,growth ring distinct to faint , diffuse porous,axial parenchyma diffuse-diffuse-in-aggregate , most of the rays biseriate , less uniseriate ,mostly Het Ⅰ type rays, crystals only in axial parenchyma. In percentage of solitary vessel and inter-vessel diameters, there were differences among Vernicia fordii、Vernicia montana and Aleurites moliccana. So the differences in these wood characters were distinct among Vernicia fordii 、V. montana and Aleurites moluccana. On the other hand ,some quantitative and ariatomical characters such as :frequency of vessels and rays ,the length of vessel members and fibers ,the perforation types , inter-vessel pitting , the 3 species were very similar, In addition , the systematic status of Vernicia Lour. and Aleurites J.R. et G. Forst. was discussed with reference of the data obtained in this work.
出处
《北京大学学报（自然科学版）》
CAS
CSCD
北大核心
1995年第6期745-751,共7页
Acta Scientiarum Naturalium Universitatis Pekinensis
基金
国家自然科学基金
关键词
油桐
千年桐
石栗
木材
比较解剖学
大戟科
Vernicia fordii
Vernicia montana
Aleurites moluccana
comparative wood anatomy
