本课题是对大麻茎不同节间纤维的分布、发生发育规律的解剖学研究。大麻茎中部节间(4～12节)分布有大量的初生韧皮纤维,是构成纤维产量的主要部分。茎中的木质部外初生纤维细胞起源于韧皮部,是初生韧皮纤维,它们成束存在,呈一不连续的环分布于皮层内侧,与周围的组织形成明显的界限。 This topic is on the cannabis stem internodes fiber distribution, the occurrence of the development of anatomical studies. Heterotrophic stem central section (4 to 12) distributed a large number of primary bast fibers, fiber constitutes the main part of the yield. Stem xylem outside primary fibroblasts originated in the phloem, is the primary bast fibers, they exist in bundles, showing a discontinuous ring inside the cortex, forming a clear boundary with the surrounding tissue.