114 TRANSPORT OF WATER AND SOIL SOLUTES 



gap, above which the water is distributed to the newer rings 

 again for farther transportation. See basal part of Fig. 57. 



Distribution of Water and Solutes throughout the Leaf. 

 -In one class of leaves the vascular bundles entering the leaf 



FIG. 58. Camera-lucida drawing of a bleached leaf of a Dicotyledon, showing the 

 course of the vascular bundles, and how they end free in the mesophyll. B, the same for a 

 leaf of a Monocotyledon, showing the anastomosis of the parallel veins by means of slender 

 lateral branches; C, magnified detail of A; D, magnified detail of B. 



are all gathered into the midrib, whence branches run into all 

 parts of the blade. These are known as netted-veined leaves 

 (Fig. 58, .1 ). In another class all of the bundles are not merged 



