景宁畲族自治县苔藓植物物种多样性及区系特征

通过对采自于景宁畲族自治县的2331份苔藓植物的鉴定研究，发现该县有苔藓植物80科194属451种(包括种以下分类单位)，其中包括浙江省新记录属2个，分别是疣毛藓属(Leratia Broth.)和拟小锦藓属(Hageniella Broth.)，浙江省新记录种30个。该区系优势科主要包括青藓科(Brachytheciaceae，34种)、灰藓科(Hypnaceae，23种)、丛藓科(Pottiaceae，22种)和提灯藓科(Mniaceae，22种)等16个，优势属主要包括羽苔属Plagiochila(Dumort.) Dumort.，14种]、青藓属(Brachythecium Bruch & Schimp.，14种)、凤尾藓属(Fissidens Hedw.，13种)、灰藓属(Hypnum Hedw.，11种)和耳叶苔属(Frullania Raddi，10种)等25个；单种属和寡种属较多，但特有现象不明显；土石生、土生和树生群落为主，水生群落较为稀少；区系主体由东亚分布成分、热带分布成分和温带分布成组成主体，呈现出明显的东亚色彩和热带向温带过度的特点。研究旨在摸清景宁畲族自治县苔藓植物本底资源，为该地区苔藓植物的保护和合理利用提供科学依据，同时以期能够为浙江省乃至中国苔藓植物研究提供基础资料。

Bryophyte Diversity and Florisitic Characteristics of Jingning She Minority Autonomous County,Zhejiang, China

Based on the identification of 2331 specimens collected from Jingning She Minority Autonomous County(Jingning for short), Zhejiang, China, 451 species in 194 genera and 80 families are recognized, among them 2 genera and 30 species are new records for Zhejiang province. Dominant families include Brachytheciaceae (34 spp.), Hypnaceae (23 spp.), Pottiaceae(22 spp.), Mniaceae(22 spp.) and so on, while dominant genera are Plagiochila(Dumort.) Dumort.(14 spp.), Brachythecium Bruch & Schimp.(14 spp.), Fissidens Hedw.(13 spp.), Hypnum Hedw.(11 spp.), Frullania Raddi(10 spp.) and so on; the monotypic and oligotypic genera are rich, but the endemic species is few; in terms of habitat preferance, petrophytia, geophytia and epixylophytia make up the majority of the bryoflora, while hydrophytia are very few; main body of the flora consists of Eastern Asia elements, Tropical elements and Temperate elements, that reflects obvious East Asian color and tropical to temperate transition characteristics of the flora. This study is designed to find out the bryophyte resources of Jingning, and provide scientific data for protection and rational ultilization of this wild resources, as the same time, it is hoped to provide basic data for bryophyte studies of Zhejiang Province and even China.