THE STUDY ON MORPHOLOGICAL DEVELOPMENT OF NODULAR VASCULAR BUNDLES OF CORIARIA NEPALENSIS WALL.

Morphological structure and the development of nodular vascular bundles of Coriaria nepalensis Wall. were studied by microscopical techniques. The vascular bundles of nodules are poly-dichotomic resulting from poly-dichotomic bifurcation of apical meristem of the primary nodule. The tree-shaped structure of nodular vascular framework is connected with the vascular system of plant in the base, It was derived originally from the plant lateral root primordium.The characteristics of morphological structure and the development of nodular vascular bundles of Coriaria nepalensis Wall. are largely different from the nodules on legume, the nodules of Myrica, Casuarinacea and other actinorhizal plants.