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作 者 ：夏 漪1，戴锡玲1，严岳鸿2，曹建国1，王全喜1*

期 刊 ：西北植物学报 2013年 8期 页码：1595~1604

关键词：卷柏科；大孢子；小孢子；孢子形态；蕨类植物；

Keywords:Selaginellaceae, megaspores, microspores, spore morphology, pteridophyta,

摘 要 ：利用扫描电镜对中国产卷柏科25种植物孢子形态进行了观察。结果显示：（1）卷柏科植物大孢子为球状四面体，辐射对称；具三裂缝，裂缝为孢子半径的1/2~3/4；极面观一般为三角圆形或近圆形，赤道面观为近圆形、近扇形或近椭圆形；极轴长为158~548 μm，赤道轴长为196~675 μm。（2）小孢子为球状四面体，辐射对称；具三裂缝，裂缝为孢子半径的1/2~3/4或几达赤道线；极面观一般为近圆形或三角圆形，赤道面观为近圆形或近扇形；极轴长为10~40 μm，赤道轴长为17~63 μm。（3）孢子表面具颗粒状、瘤状、疣状、刺状、棒状、网状、片状、疣块状和脑状纹饰。研究认为，孢子形态特征可以作为该科亚属及种的分类学依据。

Abstract:The morphology of spores of 25 species of Selaginellaceae from China was examined using scanning electron microscope (SEM).The results show that:(1)The megaspores are tetrahedral-globose,with a trilete,each of which has a length of about 1/2~3/4 of the spore radius.The megaspores are often rounded triangular or suborbicular in polar view,and suborbicular,fan-shaped or nearly elliptic in equatorial view.The length of polar axis is about 158~548 μm.The length of equatorial axis is about 196~675 μm.(2)The microspores are also tetrahedral-globose,with a trilete,each of which has a length of about 1/2~3/4 of the spore radius or almost equal to radius of the spores.The microspores are always suborbicular or rounded triangular in polar view,and suborbicular,nearly fan-shaped in equatorial view.The length of polar axis is about 10~40 μm.The length of equatorial axis is about 17~63 μm.(3)The ornamentation of the spores includes granulate,tuberculate,verrucate,spinate,baculate,reticulate,lamellate,verrucate-rugulate,and cerebriod.The spore morphology characteristics can be used as the criterions for the classification of subgenus and species of Selaginellaceae.

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