The Pines of Australia. 



Figure 51. — A cross section through a branchlet, and three decurrent 

 leaves, midway between tlie nodes, and showing no oil 

 cavity or a leaf bundle in the individual leaf tissue. The 

 endodermal parenchymatous cells occur irregularly around 

 the central axis, some containing the brown substance. 

 In this instance all the epidermal cells are filled with a 

 brown substance, forming a dark border to the trefoil. 

 The hypodermal cells are small, and in only one row. The 

 spongy and palisade parenchyma are well brought out. 

 Very faintly stained with hematoxylin. C. verrucosa, x 95. 



