107 



The Pines of Australia. 



Figure^5 4.— Transverse secliou through timber, showing manganese 

 compound in tracheitis and parenchymatous cells of rays, 

 the dark lines running from top to bottom of picture. 

 C. verrucosa, x 80. 



p«SfTt:* 



Figure 56. — Radial section of timber. The uniform character of the 

 whole of the cells of the two rays shown is well brought out, 

 as well as their single pits. C. verrucosa, x 120. 



|p^"^^"5rT»-. 





;«i: 



M 





%. 



,V., 'J ' V- 1. 



i'-i:\ 



Figure 55. — Same section as Figure 54, but showing two autumnal rings 

 of tracheids across the field of vision. C. verrucosa, X 120, 



Figure 57. — Tangential section of timber of C. verrucosa, x 120. 



Sections of timber of Callitris verrucosa, R.Br, 



