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作 者 ：罗文;宋希强;许涵;黄豪;余传文;胡海;陈焕强

期 刊 ：武汉植物学研究 2010年 28卷 3期 页码：294-302

关键词：蕨类；区系分析；尖峰岭；海南岛；

Keywords:Pteridophytes, Floristic analysis, Jianfengling, Hainan Island,

摘 要 ：

对海南尖峰岭国家级自然保护区的蕨类植物区系进行了分析.结果表明:自然保护区内共有蕨类植物165种,隶属于41科84属,优势科有7科,分别为水龙骨科、铁角蕨科、金星蕨科、蹄盖蕨科、叉蕨科、膜蕨科、鳞毛蕨科,含5种以上的优势属有7属,分别为铁角蕨属Asplenium、卷柏属Selaginella、观音座莲属Angiopteris、鳞始蕨属Lindsaea、凤尾蕨属Pteris、短肠蕨属Allantodia、鳞毛蕨属Dryopteris;根据植物的现代地理分布,本区蕨类植物科、属、种的热带成分分别占非世界分布的96.6%、90.4%、72.2%,表明本区蕨类植物区系具有较强的热带性质;本区蕨类植物的属内种类贫乏,含1种的属占63.1%,含2～3种的属占21.4%;生态类型多样,主要有土生蕨类、石生和附生蕨类;苏铁蕨Brainea insignis、水蕨Certopteris thalictroides、金毛狗Cibotium barometz、桫椤 Alsophila spinulosa、黑桫椤Gymnasphaera podophylla、大叶黑桫椤Gymnasphaera gigantea是本区国家重点二级保护珍稀濒危蕨类植物,应采取措施加强保护.

Abstract:The fern flora in Jianfengling Nature Reserve,Hainan Island,was composed of 165 species from 84 genera and 41 families．The speciesrich families were Polypodiaceae,Aspleniaceae,Thelypteridaceae,Tectariaceae,Athyriaceae,Angiopteridaceae,and Selaginellaceae.The speciesrich genera,which contained more than 5 species,were Asplenium,Selaginella,Angiopteris,and Pteris.Phytogeographically,the tropical elements of the pteridophyte families,genera,and species of Jianfengling were about 96.6%,90.4%,and 72.2% of the total (except cosmopolitan) element,respectively.This study concluded that the fern flora has a strong tropical nature. The genera species are weak for this fern flora.The monotypic genera and the oligotypic genera,which contained only 2 or 3 species,respectively,accounted for 63.1% and 21.4% of the total genera.The ecotypes were rich and included the soil ferns,lithophyte ferns,and epiphyte ferns.In addition,the presence of rare and endangered ferns such as Brainea insignis,Certopteris thalictroides,Cibotium barometz,Alsophila spinulosa,Gymnasphaera podophylla,and Gymnasphaera gigantean,which are listed in the national secondclass protected plants,should be used to increase strong protection measures for these plants.

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