TLATK XX. 



Podocarpoxylon wobumense, sp. nov. Transverse sections of 

 wood. Lower Greensand ; Woburn, Bedfordshire. 



Fig. 1. Transverse section of the secondary wood, showing the 

 well-marked annual rings, conspicuous medullary rays, 

 and resin-containing parenchyma-cells, rp., scattered 

 among the tracheids. No. V. 5451 a (p. 



Fig. 2. Transverse section of a branch, showing the centre of the 

 axis surrounded by well-marked rings of secondary 

 wood, x 1-8. No. V. 4876 (p. 214). 



