贵州丹霞地貌藓类植物的研究

根据采自中国黔北赤水、习水丹霞地貌地区的530号藓类植物标本的整理、鉴定，得到该区藓灯植物31科、68属、126种、3亚种和2变种。文内讨论了该区藓类植物的种类组成、区系成份。认为黔北赤水、习水丹霞地貌地区的藓类植物在优势科、属的组成上均和贵州多数地区基本相同。在区系组成成分上以泛北极成份为主要地理成份，占总成份的44．27％。古热带及其共有成份也是本区区系成份中重要的外域成份，占成份的35．11％。在探讨了该区藓类植物和贵州多数地区藓类植物的分异后认为：藓类植物的区系分布，和影响空气情况的因素有关，与影响土质条件的因素关系并不密切，所以，藓类植物的地理分布和种子植物的地理分布可能有着明显的区域。

A study on the mosses of landform of Danxia in Guizhou, China

This study was based on 530 specimens collected by the author in the region of Danxia landform in Chishui, Xhishui county of Guizhou province, China. There are 131 species and subspecies of mosses belonging to 68 genera and 31 families in this region. In this paper, the characteristics and relationships of moss flora between the district of Danxia landform of north in Guizhou province and other regions of this province were discussed. The identification result shows that the Holarctis elements are the most important ones (44.27%) and the Palaeotropis and its common elements (35.11%) are also abundant there. The phytogeography of moss flora is different with that of seed plant flora and is related to the elements of climate, temperature and humidity.