Objective: To study the quantitative relationship between the lateralmargin of the superior facet and the pedicle center of lumbar vertebrae.
目的：探讨腰椎上关节突外缘的形态特点及其与椎弓根中心的关系。
2
The vascular bundles in stereid layer or Parechymatous cell layer of lateralmargin of its testa provide the testa development with water and nutrition.
合欢种皮侧缘厚壁(薄壁)细胞层中有维管束，它为种皮的发育提供水分与营养。
3
Leaves alternate, petiolate, thinly leathery or papery, margin dentate in apical half , rarely entire, lateral veins 2 or 3 pairs, lowest triplinerved.