广西歧舌苔属植物研究及一中国新记录种毛缘歧舌苔

The genus Schistochila in Guangxi with Schistochila sciurea as new recorded species of China

【目的】了解歧舌苔属植物在广西的实际分布情况,为广西苔藓植物研究增加新资料的同时,也为中国苔藓植物多样性保护添加必要的基础数据。【方法】通过野外调查结合广西植物标本馆(IBK)馆藏标本的核查,获得歧舌苔属植物研究材料,经室内形态观察及查阅相关文献,确定其物种多样性。【结果】发现广西歧舌苔属植物标本10份,最终确认广西歧舌苔属植物3种,分别为毛缘歧舌苔[Schistochila sciurea(Nees)Schiffn.]、大歧舌苔[S.aligera(Nees&Blume)J.B.Jack&Steph.]、阔叶歧舌苔[S.blumei(Nees)Trevis.]。【结论】歧舌苔科以及歧舌苔属均为首次在广西记录的科属,其中毛缘歧舌苔是中国新记录种。文章对毛缘歧舌苔的形态特征进行详细描述,对另外2个种主要形态特征进行归纳,并提供各个种的引证标本信息、地理分布以及彩色图版。

[Objective]The study aims to understand the distribution of the species of Schistochila in Guangxi,which not only adding new data for the study of bryophytes in Guangxi,but also adding data for the conservation of bryophyte diversity in China.[Methods]Through recent field surveys and examining specimens of Schistochila from Guangxi Herbarium(IBK),the species diversity was determined by morphological observation and literature review.[Results]Ten specimens of Schistochila from Guangxi were found,and three species of Schistochila in Guangxi were confirmed,namely Schistochila sciurea(Nees)Schiffn.,S.aligera(Nees&Blume)J.B.Jack&Steph.,and S.blumei(Nees)Trevis.[Conclusion]Schistochilaceae and Schistochila are reported as new records to Guangxi at the levels of family and genus,respectively.S.sciurea is firstly reported to the bryoflora of China.Description of S.sciurea and diagnostic characters of S.aligera and S.blumei are provided based on the specimens.Each species is accompanied by vouchers,distribution information,and a color plate.