cross section of laurel clockvine, thunbergia laurifolia, rhynchosia phaseoloides, trumpet vine, tecoma radicans - 形成層 幅插畫檔、美工圖案、卡通及圖標
deciduous tree branch, angiosperm stem, schematic cross section showing wood and bark tissues - 形成層 幅插畫檔、美工圖案、卡通及圖標
maple tree (acer) trunk cross sections showing medullary ray cells - 19th century - 形成層 幅插畫檔、美工圖案、卡通及圖標植物細胞, 細胞
this botanical engraving illustrates the internal cellular structure of a one-year-old twig of the blackcurrant (ribes nigrum) - 形成層 幅插畫檔、美工圖案、卡通及圖標