广西师范大学学报（自然科学版）2018，Vol.36Issue(1)：142-148,7.DOI:10.16088/j.issn.1001-6600.2018.01.021
瘤足蕨科植物叶表皮微形态及其系统学意义
Systematic Significance of Leaf Morphology in Plagiogyriaceae
摘要
Abstract
Leaf epidermises of 14 taxa,representing Plagiogyriaceae and its related taxa,were examined by light microscopy (LM)and scanning electron microscopy (SEM)to determine the systematically informative characters.The 14 taxa include 9 species of Plagiogyriaceae (Plagiogyria adnata,P. assurgens,P.euphlebia,P.falcata,P.glauca,P.japonica,P.matsumureana,P.pycnophylla and P.stenoptera),4 species of Cyatheaceae (Alsophila austro-yunnanensis,Gymnosphaera khasyana,G. spinulosa and Sphaeropteris brunoniana ) and 1 Dicksoniaceae species of Cibotium barometz.The results show that the leaf epidermal cells are usually irregular in shape.The patterns of anticlinal walls sinuous and sinuate.There are wax granules on the epidermiese of Plagiogyria assurgens,P.glauca, Sphaeropteris brunoniana,and Cibotium barometz.The stomatal apparatuses were restricted in abaxial epidermises for all species,and could generally be assigned to polocytic,axillocytic,aisocytic, anomotetracytic,anomocytic,diacytic,and pericytic types.Based on the results of leaf micromorphology,the taxonomic and systematic positions of Plagiogyriaceae were discussed.关键词
瘤足蕨科/桫椤科/蚌壳蕨科/气孔器类型/近缘类群Key words
Plagiogyriaceae/Cyatheaceae/Dicksoniaceae/type of stomatal apparatuses/related taxa分类
农业科技引用本文复制引用
赵航,王任翔,刘灵..瘤足蕨科植物叶表皮微形态及其系统学意义[J].广西师范大学学报（自然科学版）,2018,36(1):142-148,7.基金项目
国家自然科学基金(31460049) （31460049）
