青麸杨分泌道的解剖学研究

报道了育麸杨分泌道的结构、分布和发育。青麸杨的分泌道是由14—41个分泌细胞围绕细胞间隙而成的腔道，分泌细胞外侧又被多层扁平的鞘细胞所包围。青麸杨的分泌道主要分布于根、茎、叶、花和果实的维管束的韧皮部内，此外，茎的髓中也有少量分泌道，分泌道位于木质部脊处的薄壁组织内，排列成一圈。青麸杨各器官中的分泌道的发生方式一致，都是裂生方式起源的。

ANATOMICAL STUDIES ON THE SECRETORY CANALS OF RHUS POTANINII

The structure,distribution and development of the secretory ducts were studied inRhus potaninii. The secretory ducts are composed of fourteen to forty--one secretory cellsand a few lyers of sheath cells. The ducts occur mainly in the phloem of roots,stems,leaves, flowers and fruits also in the pithes of stem. The latter distributed in pithparenchyma close by xylem spins. The secretory ducts of schizogenous origin weredescribed in Rhus poptaninii.