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广义锦葵科火绳树属4个种的枝条木材解剖及其分类学意义

《广西植物》[ISSN:1000-3142/CN:45-1134/Q]

期数:
2010年06期
页码:
742-747
栏目:
植物系统学与演化植物学
出版日期:
2010-11-15

文章信息/Info

Title:
Study of branch wood anatomy of four species of Eriolaena (Malvaceae sensu lato) and its taxonomical implications
作者:
唐亚*王静 张立芸 高辉
四川大学 建筑与环境学院 环境系,成都 610065
Author(s):
TANG Ya* WANG Jing ZHANG Li-Yun GAO Hui
Department of Environment, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
关键词:
枝条木材解剖火绳树属锦葵目分类
Keywords:
branch wood anatomy Eriolaena Malvales taxonomy
分类号:
-
DOI:
-
文献标识码:
A
摘要:
研究了广义锦葵科火绳树属4个种枝条的木材解剖。火绳树属枝条为散孔至半环孔材,管孔主要为单管孔和2-3个管孔组成的径列复管孔;导管间纹孔式和射线导管间纹孔式互列、小;侵填体和螺纹加厚缺如。射线主要为单列射线,2-3列射线较多;射线细胞多为方形,射线组织主要为异型,边缘直立细胞常1行;射线组织稀为同型;鞘细胞和瓦形细胞缺如。轴向薄壁组织傍管和离管型,主要为带状。晶体丰富,主要在射线、纤维和薄壁组织中。研究的4种可以通过枝条木材解剖特征加以区分。
Abstract:
Species of Eriolaena are difficult to distinguish from each other in gross morphology without flowering materials. Branch wood anatomy of four species of Eriolaena is studied in order to explore the possibility of separating species from each other in branch wood anatomy. Eriolaena has diffuse to semiringporous branch wood with mainly solitary vessels and short radial multiples of 2-3 cells. Intervessel and rayvessel pits are small,alternate. Tyloses and helical thickenings are absent. Both uniseriate rays and 2 to 3cellwide multiseriate rays are common and most ray cells are square. Rays are heterocellular,body ray cells procumbent with usually one or rarely two row of upright marginal cells,or sometimes homocellular. Tile cells are absent. Sheath cells are poorly to moderately differentiated in the multiseriate ray cells. Axial parenchyma is abundant,both paratracheal and apotracheal,predominantly banded. Prismatic crystals are abundant in rays,fiber and parenchyma. The four species can be distinguished on the basis of anatomical features of branch wood.

参考文献/References

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2011-01-28