The Pines of Australia. 



Figiue 98.^Traasvcisc section through brauchlet and attached portions 

 of decurrent leaves. The three circular spaces are the oil 

 cavities, one in each leaf, below which is a bundle with its 

 red-coloured xylem and purple phloem. The transfusion 

 tissue shows bordered pits in the cells, whilst the dark 

 brown colours are manganese compound contents in 

 some of the endodermal cells. The three wedge-shaped 

 figures are the lower portions of the decurrent channels. 

 Stained with haematoxylin and safranin. C. arenosa, x igo. 



Figure 101. — Longitudinal section through the upper portion of two 

 leaves, and portions of two oil cavities, one on each side, 

 clear of, the median axis. The bordered pits mark the 

 transfusion cells, while the brownish patches are the man- 

 ganese compound, those at the base of the left cavity 

 having depressed markings. The parenchymatous character 

 of the cells is well seen. Stained with hematoxylin and 

 safranin, C. arenosa, x 190. 



