贵州药用苔藓植物的分布与区系

Distribution & Floral Features of medicinal Bryophyte in Guizhou.

贵州药用苔藓已知４７种，在省内的分布以铜仁地区最多，占总数的６８．０８％，黔西南州最少，只有１７．０２％；其他地区药用苔藓的比例由多至少依次为：贵阳地区、毕节地区、黔东南州、黔南州、安顺地区和六盘水地区。在植物区系成份中，贵州药用苔藓以泛北极成份为主，并和古热带区系有广泛的联系，和新热带区系有一定的联系。

There are 47 species of medicinal bryophytes in Guizhou Province. Most of them are distributing at Tongren region. Accounting for 68. 08% of total number of species in Guizhou. And the least are southwest region, taking up 17. 02%.An analysis of geographical and floral elements of Guizhou medicinal bryophytyes indicates that 52. 17% species of total belong to holarctic clements: Among them there are 1 3. 04 % clements endemic to east asian.4. 34 % circumpolar elements. 2. 1 7% elements endemic to China. And 25. 53% species of total belong to Holarctis and Palaeotropis elements. Palaeotropis elementa are 8. 69%. Cosmopolitans are 1 0. 86%.