四棱草属比较形态及其分类系统位置的研究──Ⅳ.四棱草属及其近缘属叶表皮结构特征 COMPARATIVE MORPHOLOGY IN SCHNABELIA OF CHINENSE ENDEMIC PLANT AND ITS SYSTEMATIC POSITION II. LEAF ARCHITECTURE IN SCHNABELIA AND ITS AFFINITE GENERA A New Cyclic Octopeptide from Schnabelia oligophylla 四棱草属比较形态及其分类系统位置的研究──Ⅴ.四棱草属及其近缘属茎和叶柄的解剖 Discovery of Abelia spathulata (Caprifoliaceae) in eastern China Abelia lipoensis,a New Species of the Genus Abelia from Guizhou,China Sorbus tiantangensis,A New Species of the Genus Sorbus L. THE INTRODUCTION AND OBSERVATION OF GROWTH AND DEVELOPMENT OF SCHNABELIA 四棱草属比较形态及其分类系统位置的研究Ⅰ.四棱草属及近缘属叶片毛状体微形态