为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

The taxonomic status of the Eastern Asia endemic Sorolepidium is controversial. Some authors accept it as member of the ......

Chloroplast rbcL sequences of 60 species of Polystichum sensu lato (s.l.), including 23 new sequences from southwest Chi......