The Pines of Australia. 



131 



Figure 69. — Transverse section through ct-ntral axis and decurrent leaves. 

 The endodermal cells and transfusion tissue are seen massed 

 together around the central axis and enclosing the leaf 

 trace, and extending up to the oil cavities. C. glauca, x So. 



Figure 70. — Similar section to Figure 69. The decurrent channels are seen 

 to be quite opened in contrast to those of Figure 6g. C. 

 glauca, -X So. 



Figure^-72. — Shows the unusual occurrence of two oil cavities in one leaf. 

 In this illustration- two of the decurrent channels are 

 practically closed. C. glauca, x 80. 



Cross sections of branchlet and leaves of C* glauca, R,Br, 



