Xylem rays are mostly uniseriate with 1-11 ( 2-5 ) cells in height and 65-70 rays per mm ~ 2 in density among which nodular and indenture structure is apparent .

木 射线单列，高1～11（2～5）个细胞，每平方毫米具65～70条木射线，端壁节状加厚和凹痕均较明显；

According to the arrangement of phloem and xylem shape of xylem and the Arranging way of xylem rays the midrib bundles were divided into five forms :( 1 ) amphicribral round bundle ;

根据中脉维管束结构特点：木质部与韧皮部的位置，木质部的形状， 木 射线排列的方式，可分为5个类型：（1）圆形 周韧维管束；

Secondary xylem consists of pitted vessels parenchyma fibers and rays .

次生 木质 部由孔纹导管、薄壁组织及 射线所组成。