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 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