新疆白齿藓属的分类及其地理分布

Taxonomy and geographical distribution of Leucodon in Xinjiang,China

通过对新疆白齿藓属(Leucodon)标本的系统整理,确认该属在新疆共有4种,其中3种为新疆新记录种,分别为朝鲜白齿藓(L.coreensis Cardot.)、垂悬白齿藓(L.pendulus Lindb.)和中华白齿藓(L.sinensis Thér.)。本文对上述4个种的形态特征、生境和地理分布等进行了详细描述,并提供了显微形态图版和墨线图。依据白齿藓属植物在我国的地理分布,推测秦岭地区可能是白齿藓属植物在我国的分布和分化中心。

Through systematic collation of specimens,we confirmed four species of the genus Leucodon in Xinjiang,three of which are new records to Xinjiang,including L.coreensis Cardot.,L.pendulus Lindb.,and L.sinensis Thér.In this paper,the morphological characteristics,habitat,and geographical distribution of these four species are described in detail,and micromorphological charts and line drawings are provided.This study expands the diversity and geographical distribution of Leucodon in Xinjiang and enriches the basic data of Leucodontaceae in China.According to its geographical distribution,the Qinling region maybe a distribution and biodiversity center of Leucodon in China.