常見例句Acorus tatarinowii was more primitive "工" shape mesarch haplostele, while Zantedeschia aethiopica atactostele; 石菖蒲根的維管柱為2-8原型星狀中柱．馬蹄蓮為2-5原型星狀中柱。mesarch sere 中生演替系列mesarch xylem 中始式木質(zhì)部 返回 mesarch