The entire shoot apex of a horsetail could fit into the large apical cell in the growing tip of a fern . 木贼的整个茎尖可相当于蕨类生长锥中大的顶端细胞。
2.
The apical cell of the first leaf and of the first root originate almost at the same time after the embryo reaches to the 32 - celled phase 胚胎在32细胞阶段后，第一叶顶端细胞与第一根顶端细胞几乎同时发生。
3.
The second leaf takes place at the basal part of the first leaf and originates from the shoot apex cells when the first leaf pierces the calyptra 第一叶突出帽状体之后，由第一叶基部保留下来的茎干顶端细胞产生第二叶。
