中文摘要：

对采自贵州省纳雍珙桐自然保护区的258份苔类标本进行整理,初步鉴定出苔类植物79种（合变种及亚种）,隶属24科32属.其中,优势科有护蒴苔科Calypogiaceae、地萼苔科Geocalyaceae和细鳞苔科Lejeuneaceae 等,优势属有护蒴苔属Calypogia、裂萼苔属Chiloscyphus和异萼苔属Heteroscyphus等.另外,79种苔类植物中,北温带成分、热带亚洲成分和中国—日本成分的种数分别为20、18和14,分别占总种数（不包括世界广布种）的26.32％、23.68％和18.42％.

英文摘要：

A total of 258 liverwort specimens were collected from Nayong Dovetree Nature Reserve in Guizhou Province.The were 79 identified species （including variation and subspecies） belonging to 32 genera in 24 families.The dominant families were Calypegiaceae,Geocalyaceae and Lejeuneaceae etc.The prominent genera were Calypogia,Chiloscyphus and Heteroscyphus etc.In addition,the number of North Temperate,Tropical Asia and Sino-Japan were 20,18 and 14,accounting for 26.32％,23.68％ and 18.42％ of the total （excluded the Cosmopolitan） respectively.