叶脉

The development of xylem is of mesarch.Stomata are monocyclic type.

脉、柄、上胚轴维管束均为外韧型。

The haustrum structure of the two were similar and both were composed of parenchyma and spiral vessel.

北桑寄生较薄，脉发达，无栅栏组织和海绵组织分化。

The mechanical tissues were mainly composed of fibre, flakily situated in the tops and bottoms of most veins.

由纤维组成机械组织，成片存在于绝大多数脉上下方。

Leaves basal and cauline, alternate, rarely opposite or whorled, simple or variously compound, palmately nerved, rarely penninerved, with or without stipules.

基生和茎生，互生，很少对生或者生，单或者复，掌状脉，很少羽状脉，有或无托。

The results indicate that leaves of C. pseudocuraica from five different environments exist the same structure.They are all made up of epidermis, mesophyll and nervure.

5种生境下漂筏苔草片具有相同结构，都是由表皮、肉和脉三部分构成。

Stipular film is qualitative, elliptical shape wraps around needle form, grow 7-15 millimeter, tip gradually pointed, the brim has gland a tooth-like part of anything, edge nervation by fluff.

托膜质,椭圆状披针形,长7-15毫米,先端渐尖,边缘具腺齿,沿脉被柔毛。

The water drops upon the light green leaves, sliding across the nervure, rolling to the edge of the leaves and down to the land, streching its transparent and full of change body.

雨滴打在翠绿上，慢慢滑过细细脉，从子边缘滚落到地上，伸展着它透明而富于变化身体。