中国蕨类植物孢子形态的研究 Ⅵ . 凤尾蕨科

Plant Diversity ›› 2005, Vol. 27 ›› Issue (05): 489-500.

中国蕨类植物孢子形态的研究 Ⅵ . 凤尾蕨科

戴锡玲^1,2 , 王全喜², 于晶² , 朱瑞良¹

1 华东师范大学生命科学学院; 2 上海师范大学生命与环境科学学院

收稿日期:2005-02-22 出版日期:2005-10-01 发布日期:2005-10-01
通讯作者: 王全喜

Spore Morphology of Pteridophytes from China Ⅵ .Pteridaceae

DAI Xi-Ling^1,2, WANG Quan-Xi², YU Jing² , ZHU Rui-Liang¹

1 College of Life Science , East China Normal University , Shanghai 200062 , China ; 2 College of Life and Environment Sciences , Shanghai Normal University , Shanghai 200234 , China

Received:2005-02-22 Online:2005-10-01 Published:2005-10-01
Contact: WANG Quan-Xi

摘要/Abstract

摘要： 利用扫描电镜对国产凤尾蕨科( Pteridaceae ) 2 属30 种4 变种植物孢子进行了观察。
其中凤尾蕨属( Pteris) 29 种4 变种, 孢子三裂缝, 辐射对称; 极面观为钝三角形, 赤道面观
为半圆形或超半圆形; 孢子极轴长26～54μm, 赤道轴长34～97μm; 外壁厚, 形成孢子表面纹饰的轮廓; 周壁薄, 紧贴于外壁上; 多数种类孢子外壁具沿赤道加厚的赤道环, 孢子表面呈
瘤块状、疣块状, 或隆起的脊连成网状或拟网状等纹饰, 有的种类具近极脊和远极脊。凤尾
蕨属植物孢子的形态稳定, 种间差异明显, 但孢子形态特征与孢子体的形态特征是不相关的。
栗蕨属( Histiopteris) 植物孢子为单裂缝, 两侧对称, 极面观椭圆形, 赤道面观豆形; 孢子极
轴长22～23μm, 赤道轴长29～36μm; 周壁很薄, 由外壁形成孢子纹饰的轮廓; 表面呈粗的
块状纹饰。从孢子形态上看, 栗蕨属与凤尾蕨属有很大差异, 将其放在一个科中不合适。

关键词: 凤尾蕨科, 孢子形态, 蕨类植物, 中国FONT

Abstract: The spore morphology of 30 species 4 variety of 2 genera of Pteridaceae from China was investigated under scanning electron microscope (SEM) . Among them, 29 species 4 variety belong to the genus Pteris . The spores of Pteris are trilete , radiosymmetrical , subtriangular in polar view and hemispherical or subhemispherical in equatorial view . The polar axes are 26 - 54μm long , and equatorial axes are 34 - 97μm long . The perispore is thin and the surface ornamentation is formed by the exospore . The types of ornamentation are tuberculiform-rugulate , verruciform-rugulate or lophate , the spore of most species with the equatoial flange, some species with proximal ridge and distal ridge . The spore morphology of Pteris is stable, and the difference between species is distinct , but the features of spore and sporophyte are not related. The spore of Histiopteris is monolete and bilaterally symmetrical, elliptical in polar view and kidney-shaped in equatorial view . The polar axes are 22 - 23μm long , and equatorial axes are 29 - 36 μm long . The perispore is thin and the surface ornamentation is formed by the exospore . The surface is rugulate . The spore morphology of Histiopteris and Pteris is very differential , put genus Histiopteris in family Pteridaceae is not suitable, according to the feature of spore morphology .

Key words: Pteridaceae

戴锡玲1,2 , 王全喜2 , 于晶2 , 朱瑞良1 . 中国蕨类植物孢子形态的研究 Ⅵ . 凤尾蕨科[J]. Plant Diversity, 2005, 27(05): 489-500.

DAI Xi-Ling^,, WANG Quan-Xi, YU Jing , ZHU Rui-Liang. Spore Morphology of Pteridophytes from China Ⅵ .Pteridaceae[J]. Plant Diversity, 2005, 27(05): 489-500.

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