114 



TRANSPORT OF WATER AND SOIL SOLUTES 



gap, 



above which the water is distributed to the newer rins;s 



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, .4). In another class all of the bundles are not merged 



