192 



D.VDOXYLOX. 



that not only is there no complete section showing the cortex, 

 wood, and pith in the collection, but it is impossible to say which 

 transverse and longitudinal sections of the wood were originally 

 cut from the same specimen. However, the great majority are 

 undoubtedly identical specifically, and I have therefore chosen two 

 of the best sections cut in each direction as co-types together witli 



Fig. 40. — Dadoxylon australe, sp. nov. Transverse section. 5 1,479. x 25. 



No. V. 8299, which has three sections on one slide, and thus 

 shows that the longitudinal sections described here belong to 

 the same species of stem as those cut in a transverse direction. 

 The special characteristics of this species are the small and short 

 tracheides, and the numerous medullary rays. 



