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植物研究 ›› 2013, Vol. 33 ›› Issue (2): 129-133.doi: 10.7525/j.issn.1673-5102.2013.02.001

• 论文 •    下一篇

16种丛藓科(Pottiaceae)植物蒴齿形态特征及其系统学意义

王晓蕊1,2;王立宝3;李敏1;赵建成1*   

  1. 1.河北师范大学生命科学学院,石家庄 050024;2.河北师范大学汇华学院,石家庄 050091;3.河北师范大学旅游系, 石家庄 050024
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-03-20 发布日期:2013-03-20
  • 通讯作者: 赵建成
  • 基金资助:
     

Peristome Morphology Characteristics of 16 Species of Family Pottiaceae and their Systematic Significance

WANG Xiao-Rui;WANG Li-Bao;LI Min;ZHAO Jian-Cheng*   

  1. 1.College of Life Science,Hebei Normal University,Shijiazhuang 050024;2.College of Huihua,Hebei Normal University,Shijiazhuang 050091;3.Tourism Department of Hebei Normal University,Shijiazhuang 050024
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-03-20 Published:2013-03-20
  • Contact: ZHAO Jian-Cheng
  • Supported by:
     

摘要: 通过扫描电镜(SEM)观察了16种国产丛藓科(Pottiaceae)植物蒴齿的形态特征,结果表明:丛藓科植物的蒴齿为单齿类,齿条1~3回左旋或直立,多具基膜,并密被疣,这些共同特征说明了丛藓科植物蒴齿具有一定的相似性;但在齿条形状和旋转情况及基膜特征等方面又有区别,明显分为3种类型,显示了不同属、种间的遗传分化。最后,本文还讨论了蒴齿特征与干旱环境的适应。

关键词: 丛藓科, 蒴齿, 系统学意义, 遗传分化

Abstract: The peristome morphology of 16 species of the family Pottiaceae was observed by scanning electron microscope (SEM). The results show that the peristomes of these species are similar. They are haplolepideae. Peristome teeth are 1-3 sinistrorse circles or erect, basal membrane is present and densely covered with small papillae. While based on the differences of shape and rotation of peristome teeth and characteristics of basal membrane, three styles of peristome can be distinguished. It shows the hereditary differentiation of genus and species. This paper also discusses the adaptation of peristome morphology to the xerophytic environment.

Key words: Pottiaceae, Peristome, systematic significance, hereditary differentiation

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