232 



The Pixe? of Australia. 





Figure 155.- 



-Loncitudinal section throiieh bark. The nnrrow piiralk-l 

 bands running from top to bottom of picture are the bast 

 fibres wparated by wide parenchymatous cells and very 

 narrow sieve tubes. A few of the sieve plated; can just be 

 s^^'en. The dark patches mark the manganese in the cells. 

 The light area in the middle is a periderm layer. C. 

 rhomboidea, x loo. 



\^.^ 



FlKure J56.— I-onKitudinal "^rction of bark, showing the larRc number oi 

 vii-ve plates which chnr.icteri'i/' thi"; nark." C. rhonthniiirn, 

 X 270. 



Longitudinal sections of bark of C. rhomboidea, R.Br- 



