贵州斗篷山藓类植物资源调查与区系分析

Investigation and Floristic Analysis of Moss Resources in Doupengshan Mountain of Guizhou

为给斗篷山地区及贵州省苔藓植物研究提供基础资料,采用野外采集与室内鉴定相结合的方法,对贵州省斗篷山地区苔藓植物资源、物种结构和区系特征进行研究。结果表明:斗篷山共有藓类植物39科97属241种(包括亚种、变种)。其中,粗齿卷柏藓(Racopilum spectabile)和瘤根真藓(Bryum bornholmense)为贵州省新纪录种。与贵州其他地区相比,斗篷山地区藓类植物相对较多。该地区优势科属的优势明显,优势科有曲尾藓科(Dicranaceae)、青藓科(Brachytheciaceae)和灰藓科(Hypnaceae)等,优势属有凤尾藓属(Fissidens)、棉藓属(Plagiothecium)和青藓属(Brachythecium)等,但单种属和寡种属数量较大。土生群落占优势,石生、水生和树生群落的数量相当。区系地理复杂,分布类型多样,东亚成分占优势,温带成分占据重要比例。

In order to provide basic information for research of bryophytes from Doupengshan mountain of Guizhou,the bryophytes resources,species structure and floristic characteristics were studied through field acquisition and indoor identification.Results：241moss species belonging to 97 genera and 39 families were identified（including subspecies and variations）.And two newly recorded species of Guizhou were found,which were Racopilum spectabile and Bryum bornholmense.Compared with other places of Guizhou,more moss did Doupengshan mountain had.Obvious dominance did dominant families and genera had,dominant families included Dicranaceae,Brachytheciaceae and Hypnaceae,the main genera were Fissidens,Plagiothecium and Brachythecium,but the monotypic and oligotypic genera were rich.Geophytia made up the majority of the moss,petrophytia,hydrophytia and epixylophytia had no much difference.Distribution patterns varied,the east Asian element was dominant,while some temperate pattern also occurred.