石灰岩树种菜豆树（Radermacherasinica（Hance）Hemsl．）根的解剖研究初报

PRELIMINARY STUDY ON ROOT ANATOMY OF RADERMACHERA SINICA(HANCE)HEMSL,ADAPTED TO GROWTH ON THE LIMESTONE HILL

近几年，我们发现菜豆树根柔软并膨大，为了解释这种现象，我们对其根进行了解剖研究。根的横切面在显微镜下现在显示：在皮层有多层类似于木栓的扁平细胞，它们起源于一些脱分化，恢复再分裂的略呈多角形和近于圆形的皮层薄壁细胞。

In the recent past,we discovered that the root of Asia Belltree(Radermachera sinica)is soft andswellen,In order to explain this phenomenon, we study its anatomy. The transverse section ofits root under microscope shows that there are numerous cork-like flat cell Rows orgiiiated fromdedifferential and redivision of somewhat polyhedral and rounded parenchyma cells in cortex.