广西猫街鸟类自然保护区苔藓植物初步研究

通过对采自广西西林县猫街鸟类自然保护区的413份苔藓植物标本整理和鉴定,得到该区苔藓植物33科66属153种（含亚、变种）。其中藓类植物23科53属116种,苔类植物10科13属37种,有65种为广西首次记录。其区系地理成分多样,与其他区系紧密联系。该区以东亚成分为主,占总数的32.03%,温带和热带成分所占比例也较高,反映该地具有南北过渡的特点,与其所处的地理位置相一致;中国特有成分较高,占总数的12.42%,处于我国特有种属分布中心的过渡地带上。在进行的优势科、属分析中,优势科为青藓科Brachytheciaceae、灰藓科Hyp-naceae、丛藓科Pottiaceae、曲尾藓科Dicranaceae、地萼苔科Geocalycaceae、凤尾藓科Fissidentace-ae、叶苔科Jungermanniaceae,占优势的属为凤尾藓属Fissidens、曲柄藓属Campylopus、青藓属Brachythecium、灰藓属Hypnum、叶苔属Jungermannia和异萼苔属Heteroscyphus.该地苔藓植物主要成分以热带、亚热带成分和温带成分为主,处于温带向热带过渡的地段上。

A Study on the Bryoflora on the Maojie Nature Reserve for Bird in Guangxi Province

After having identified 413 bryophytes specimens collected from Maojie Nature Reserve for Birds in Guangxi Province,in total 33 families,63 genera,153 species（including subspecies and variation）,for mosses 23 families,53 genera,116 species,while for liveworts,10 families,13 genera,37 species were identified.There are 65 new record species in Guangxi Province.The result showS that： the geoqraphical elements are varied and connected with other geographic elements of the world flora.The E.Asia takes up a predominant position（32.03%）;The Temperate elements and the Tropic dements have a high inverse proportion,which shows the transition characteristics from north to south and consistent with the Geographical position.The count of Endemic to China elements also have a high inverse proportion,it occupies 12.42% of the total and this area in the transition zone of our country endemic species distribution center.Dicranaceae,Fissidentaceae,Pottiaceae,Brachytheciaceae,Hypnaceae,Jungermanniaceae,Geocalycaceae are the 7 predominant families of Maojie Nature Reserve for Birds,and the 6 predominant genera are as follows： Fissidens,Campylopus,Brachythecium,Hypnum,Jungermannia,Heteroscyphus.Through the analysis of the predominant families and generas in this area.It can be concluded that the tropical elements are More important.The main component of bryophytes is tropical,subtropical elements and temperate elements in this area.The Maojie Nature Reserve for Birds is in the temperate zone to tropics transition land sector.