| 1. | Cells of the procambium and ground meristem are more vacuolated than those of the protoderm .
原形成层和基本分生组织的细胞比原表皮层细胞更加液泡化。 |
| 2. | The stele includes all primary tissues derived from the procambium consists of pericycle，phloem and xylem .
中柱包括从原形成层衍生而来的全部初生组织，由中柱鞘、韧质部和木质部组成。 |
| 3. | In roots it may also be called plerome
原形成层在根中也被可称为中柱原。 |
| 4. | Primary xylem xylem derived from the procambium in the young plant
初生木质部：指幼嫩植物中来源于原形成层的木质部。 |
| 5. | Primary phloem phloem derived from the procambium in the young plant
初生韧皮部：指幼嫩植物中来源于原形成层的韧皮部。 |
| 6. | Protoxylem the primary xylem elements that are formed from the procambium first
原生木质部：初生木质部的成分，最早由原形成层形成。 |
| 7. | Procambium ( procambial strand ) the layer of cells that gives rise to the vascular tissue
原形成层（原形成层束） ：形成维管组织的一层细胞。 |
| 8. | Primary vascular tissue , which is found in all vascular plants , is formed from the procambium
初生维管组织由原形成层发育而来，在所有维管植物中都有存在。 |
| 9. | Protophloem the first - formed primary phloem , differentiated from the procambium in the region just behind the meristem
原生韧皮部：最早形成的初生韧皮部，由位于分生组织中的原形成层分化而来。 |
