| 1. | It has been applied to attached algae and submerged vascular plants .
这已经用于附生藻类和沉水维管束植物中。 |
| 2. | All the vascular bundles are interconnected so that transport between organs carried on rapidly and efficiently .
所有维管束都互相连通，因而得以迅速而有效地完成器官之间的运输。 |
| 3. | It shows one sheath around the vascular bundles
它显示出在维管束周围的鞘状构造。 |
| 4. | There are some tylosises in vessel elements
维管束导管分子中含有侵填体。 |
| 5. | It does not show sheaths around the vascular bundles
它并没有显示出在维管束周围的鞘状构造。 |
| 6. | Venation the distribution of veins ( vascular strands ) in a leaf
脉序：是叶片中各叶脉(维管束)的排列分布状态。 |
| 7. | It shows two well - developed sheaths around the vascular bundles
它显示出两个发育完全之维管束鞘位于维管束周围。 |
| 8. | It stretches from the leaf base to the vascular ring in the stem axis
它由叶子基部的维管束延伸至茎轴的维管束。 |
| 9. | Collateral vascular bundle
并行维管束 |
| 10. | Concentric vascular bundle
同心维管束 |
