中国蕨类植物孢子的形态Ⅶ . 桫椤科

Plant Diversity ›› 2007, Vol. 29 ›› Issue (01): 7-12.

中国蕨类植物孢子的形态Ⅶ . 桫椤科

曹建国, 于晶, 王全喜

上海师范大学生命与环境科学学院

收稿日期:2006-03-10 出版日期:2007-02-25 发布日期:2007-02-25
通讯作者: 王全喜

Spore Morphology of Ferns from China Ⅶ . Cyatheaceae

CAO Jian-Guo , YU Jing, WANG Quan-Xi

Life and Environment Science College, Shanghai Normal University

Received:2006-03-10 Online:2007-02-25 Published:2007-02-25
Contact: WANG Quan-Xi

摘要/Abstract

摘要： 对中国桫椤科(Cyatheaceae ) 11 种植物的孢子形态进行了扫描电镜的研究。桫椤科孢子辐射对称, 三裂缝, 裂缝长度达孢子半径的3/4 左右, 极面观三角形, 赤道面观为半圆形或扇形, 孢子极轴长为27～42μm, 赤道轴长为32～52μm。孢子表面纹饰是由周壁形成的, 可分为4 种类型, 即条纹状、疣状、刺条状、短刺状。根据孢子的形态特征, 对中国桫椤科孢子类型进行了划分, 对属的划分问题进行了探讨。

关键词: 桫椤科, 孢子形态, 蕨类植物FONT

Abstract: Spore morphology of 11 species of Cyatheaceae from China was examined by the means of scanning electron microscope (SEM). The spores are radially symmetrical and trilete. The aperture ( laesura ) arms are about 3??4 length of the radius of spores. The spores are often triangular in polar view, and hemispheric or flabellate in equatorial view. The length of polar axis is about 28-42μm. The length of equatorial axis is about 32-52μm. The ornamentations of spores are formed by perispore. They can be divided into 4 types, i. e. striate, verrucate, echinate-striate, short- echinulate. The classification of genera in Cyatheaceae was discussed in the present paper.

Key words: Cyatheaceae

中图分类号:

Q 944

曹建国, 于晶, 王全喜. 中国蕨类植物孢子的形态Ⅶ . 桫椤科[J]. Plant Diversity, 2007, 29(01): 7-12.

CAO Jian-Guo , YU Jing, WANG Quan-Xi. Spore Morphology of Ferns from China Ⅶ . Cyatheaceae[J]. Plant Diversity, 2007, 29(01): 7-12.

[1]	卢金梅1 , 李德铢1 , 吴丁2 . 鳞毛蕨科的孢子形态研究[J]. Plant Diversity, 2007, 29(04): 397-408.
[2]	常艳芬, 王任翔, 张碧波, 陆树刚. 云南水龙骨科水龙骨亚科孢子形态的研究[J]. Plant Diversity, 2006, 28(2): 139-144.
[3]	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.
[4]	陆树刚，李春香. 中国黑桫椤属植物(桫椤科)一新组合种[J]. Plant Diversity, 2005, 27(01): 39-41.
[5]	王全喜于晶. 扫描电镜下真蕨目孢子表面纹饰的分类[J]. Plant Diversity, 2003, 25(03): 1-3.
[6]	刘家熙孙晓红靳颖吕琳余晓星张宪春. 云南产8种卷柏科植物的孢子形态[J]. Plant Diversity, 2003, 25(03): 1-3.
[7]	杜桂森　汪楣芝　张玉龙　　. 23种顶蒴藓类孢子形态的观察[J]. Plant Diversity, 2000, 22(03): 1-3.
[8]	陆树刚. 云南木桫椤属（桫椤科）一新种[J]. Plant Diversity, 1998, 20(01): 1-3.
[9]	程治英；武素功. 中国蕨科植物的孢子形态[J]. Plant Diversity, 1997, 19(01): 1-3.
[10]	张丽兵孔宪需. 中国后生耳蕨组的孢子形态研究[J]. Plant Diversity, 1994, 16(03): 1-3.