The Brassicaceae is an economically and scientifically important family distributed globally,including oilseed rape and ......

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......

Shibataea is a genus of temperate bamboos(Poaceae:Bambusoideae)endemic to China,but little is known about its phylogenet......

本文对一致式的概念和近期研究成果进行了归纳和总结,并在此基础上提出了辨别是否一致式的可操作性和简约化的标准.作者认为,区分......