秦岭国家级野外实习基地旬阳坝蕨类植物研究  

The ferns study of national field practice base in Xunyang dam of Qinling

作　　者：张孟颖[1] 郭韬[1] 王源[1] 肖娅萍[1] 

机构地区：[1]陕西师范大学生命科学学院,陕西西安710062

出　　处：《陕西师范大学学报（自然科学版）》2009年第S1期42-45,共4页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：陕西师范大学大学生开放性实验基金资助项目(8086)

摘　　要：在野外调查并查阅相关资料的基础上,对秦岭实习基地蕨类植物孢子形态和区系进行了初步观察与研究.结果表明:(1)采集到蕨类植物44种,隶属19科、29属;(2)该地区的优势科有:水龙骨科(Polypodiaceae)鳞毛蕨科(Dryopteridaceae)、裸子蕨科(Gymnogrammaceae)、铁角蕨科(Aspleniaceae)、木贼科(Equisetaceae)、铁线蕨科(Adiantaceae)、中国蕨科(Sinopteridaceae)、球子蕨科(Onocleaceae);(3)分布区的优势属有:铁线蕨属(Adiantum)、耳蕨属(Polystichum)、粉背蕨属(Aleuritop teris)、荚果蕨属(Matteuccia)、凤丫蕨属(Coniogramme)、铁角蕨属(Asplenium)、贯众属(Cyrtamium)、问荆属(Equisetum)、鳞毛蕨属(Dryopteris);(4)属的地理成分组成较复杂,具有9个分布区类型,其中热带成分占总属数的23.53%,且以泛热带分布为主;温带成分占总属数的76.47%,且以北温带分布为主.The ferns spore morphology and flora of national field practice base in Xunyangba of Qinling on observation and preliminary study are dealt with through investigation and referring the related literatures.The results show that:(1) There are 44 kinds of ferns belonging to 19 families and 29 genera.(2) In the region the dominant families include Polypodiaceae, Dryopteridaceae,Gymnogrammaceae,Aspleniaceae,Equisetaceae,Adiantaceae, Sinopteridaceae and Onocleaceae.(3) The dominant genera include Adiantum,Polystichum, Aleuritop teris,Matteuccia,Coniogramme,Asplenium,Cyrtamium,Equisetum and Dryopteris.(4) There are 9 areal-types of genera with compound floristic elements,among them, the pantropic one which belong to the tropical type is the main one,occupy 23.53%of the total, the temperate ones whose key elements is North temperate one occupy 76.47%.

关 键 词：秦岭旬阳坝 蕨类植物 孢子形态 区系 分布区类型 

分 类 号：Q948[生物学—植物学]