广西产9种铁角蕨属植物叶表皮微形态及其系统学意义  

Leaf Micromorphology of 9 Species of Asplenium L. in Guangxi and Its Taxonomic Significance

作　　者：邓晰朝[1] 王任翔[2] 

机构地区：[1]河池学院化学与生命科学系,广西宜州546300 [2]广西师范大学生命科学学院,广西桂林541004

出　　处：《广西科学》2010年第2期164-167,共4页Guangxi Sciences

基　　金：广西教育厅基金项目(200707MS113)资助

摘　　要：利用光学显微镜对广西产9种铁角蕨属(Asplenium L.)植物的叶表皮微形态进行观察比较。结果表明:9种铁角蕨属植物的叶表皮细胞多为不规则型,垂周壁为浅波状、波状或深波状;叶上下表皮均无毛,气孔器全部分布在下表面;它们的气孔器类型有7种,为极细胞型、腋下细胞型、聚腋下细胞型、不等细胞型、无规则四细胞型、不定细胞型和横列型。铁角蕨属植物不同种间叶表皮微形态特征表现出一定差异,对种的划分有一定的分类鉴定意义。The leaf micromorphology of 9 species of Asplenium L.,distributed in Guangxi of China was observed and compared under light microscope（LM）.The results were as the following：The form of epidermal cells of the Asplenium L.was usually irregular,with repand,sinuous or sinuate anticlinal walls.Upper and lower epidermises were hairless.The stomatal apparatus were existed on the abaxial epidermis in all species.Seven types of stomatal apparatus arrangements were found in these species,such as polocytic-,axillocytic-,coaxillocytic-,aisocytic-,anomotetracytic-,anomocytic-and diacytic-type.Furthermore,there were two or more arrangements existed in one species.The differences in the leaf micromorphology of these species threw lights on the systematics of Asplenium L.

关 键 词：铁角蕨属 叶表皮 微形态 分类鉴定 

分 类 号：Q949[生物学—植物学]