广西蕨类植物孢子形态的研究Ⅲ．凤尾蕨科

苏以丽1; 2; $23; $24; $21; 2*; $25; 谢强1; 2; $21; 2; $21; 2

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广西蕨类植物孢子形态的研究Ⅲ．凤尾蕨科
苏以丽1，2，赵志国3，陈江平4，王任翔1，2*，邓晰朝5， 谢强1，2，陈彦安1，2，李丽诗1，2
1.广西师范大学生命科学学院，广西桂林 541004;2.珍稀频危动植物生态与环境保护省部共建教育部重点实验室，广西桂林 541004;3.广西壮族自治区中国科学院　广西植物研究所，广西桂林 541006;4.广西桂林市林业科学研究所，广西桂林 541004;5.河池学院化学与生命科学系，广西宜州 546300

摘要:

利用光学显微镜和扫描电子显微镜对广西产凤尾蕨科及其近缘科蕨科、姬蕨科和碗蕨科5属9种植物的孢子形态进行了观察研究，详细描述了9种植物孢子的形态及表面纹饰特征。井栏边草、刺齿凤尾蕨、隆林凤尾蕨、剑叶凤尾蕨、林下凤尾蕨、蕨和碗蕨植物的孢子为三裂缝，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；栗蕨和姬蕨植物孢子为单裂缝，两侧对称，极面观椭圆形，赤道面观豆形。9种植物的孢子外壁表面具有脊状、瘤皱波状、瘤棒状、丝毛状、疣穴状、颗粒条纹状、瘤状和皱状8种纹饰类型，各科属、种间具有一定差异。根据孢粉特征，讨论了它们的分类学意义。

关键词: 凤尾蕨科孢子形态扫描电子显微镜广西

DOI：

分类号:Q944.56

Fund project:

Spore morphology of pteridophytes from Guangxi III．Pteridaceae

SU YiLi1，2， ZHAO ZhiGuo3， CHEN JiangPing4， WANG RenXiang1，2*， Deng XiChao5， XIE Qiang1，2， CHEN YanAn1，2， LI LiShi1，2

1．College of Life Science， Guangxi Normal University， Guilin 541004， China;2．Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University)， Ministry of Education， Guilin 541004， China;3． Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, Guilin 541006, China;4．Forestry Science Institute of Guilin， Guilin 541004， China;5．Departerment of Chemistry and Life Science， Hechi University， Yizhou 546300， China

Abstract:

The spore morphology of 9 species，belonging to 5 genera in Pteridaceae，Pteridiaceae，Hypolepidaceae and Dennstaedtiaceae distributing in Guangxi of China， was studied and compared under LM and SEM． The spores of Pteris multifida，P.dispar，P.splendida，P.ensiformis，P.grevilleana，Pteridium aquilinum and Dennstaedtia scabra are trilete，radiosymmetrical，subtriangular in polar view and hemispherical in equatorial view. The spore of Histiopteris incisa and Hypolepis punctata is monolete and bilaterally symmetrical，elliptical in polar view and kidney shaped in equatorial view. The types of ornamentation are lophate，tuberculate rugulate，tuberculate baculate，sericate，verrucate foveolate，granulate striate，tuberculate or rugulate. The differences among the spores of these genera and species and their taxonomic significance were discussed．

Key words: Pteridaceae spore morphology scanning electron microscope Guangxi