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¡¾Article¡¿
Notes on flora and distribution of the pteridophytes of Ba Mountains
¡¾Author¡¿
GUO Xiao-Si
¡¾Year¡¿
2010
¡¾Abstract¡¿
Based on the field survey and the known data£¬the flora and distribution of the pteridophytes in Ba Mountains were analyzed£®The result were showed that there were about 289 spedes(including varieties and forms)£¬79 genera and 34 families of pteridophytes in this region£®FIoristic and geograpllic dements are complicated£®At genus level£¬tropical¡ªsubtropical distribution types were dominant£¬accounting for 60£®87£¥ of the total genera£¬and temperate distribution types covered 39£®13£¥of the total£®While at the species level£¬temperate elements were dominant£¬accounting for 91£®23£¥of the total species£¬and tropical¡ªsubtropical elementa covered 8£®77£¥of the total£®Of the ternperate elements£¬East Asian element took the largest proportion£¬including endemic tO China£¬accounting for 86£®67£¥ of the total species in the mountains£¬which indicated that Ba Mountains belonged tO China-Japan Sub-zone of pteridophytes£®The pteridophytes of Eta Mountains can be divided into 3 altitudinal zones£¬and their vertical distribution cen¡ª ter occured between 1,000 -1,800 m above sea level£®

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