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1·The chloroplasts of both the mesophyll and the bundle sheath cells contain many grana.

束鞘细胞的叶绿体和叶肉细胞的叶绿体都含有许多基粒。

2·Palisade tissue is rich in saliferous vacuoles, while vascular bundle sheath is obvious.

栅栏组织富含含盐液泡泡，维管束鞘明显。

3·The vascular bundle consists of vascular bundle sheath, xylem, phloem and big parenchymatous cells.

维管束由维管束鞘、木质部、韧皮部和大型薄壁细胞组成。

4·There are 2-3 layers of long-column-shaped palisade tissue under the upper epidermis, and there are a great number of mechanical tissues which made up of vascular bundle sheath .

上表皮下方有2-3层长柱形的栅栏组织，在主脉大侧脉外方具有由大量机械组织组成的束帽或束鞘。

5·Examples include male and female plants in dioecious species aerial and submerged leaves alternation of gametophyte and sporophyte stages of a life cycle and mesophyll and bundle-sheath chloroplasts.

例如在雌雄异株物种中的雌性植物和雄性植物，气生的和被水浸没的叶片，生活史中的配子体与孢子体的交替，叶肉和维管束鞘叶绿体等。

6·The weight of a single sheath is correlated with the number of large vascular bundle and the area of vascular bundles, is correlated significantly with the area of phloem for vascular bundles.

单茎鞘重与大维管数、维管总面积相关显著，与韧皮部总面积相关极显著。