Manchester Memoirs, Vol. xlvi. (1902), No. J). 7 



In connection with these bundles, and also in other 

 parts of the middle cortex (more particularly near its 

 outer limits, as can be seen in Fig. i), one encounters dark 

 wavy lines, which seem to be due, in some cases, to the 

 compression of cells along certain lines, but in other 

 cases have the appearance of an infiltration of some 

 substance into the intercellular spaces. They are often 

 accompanied by definite bands of flattened cells of a 

 secondary nature. 



The outer cortex, or what Hick called the " true 

 cortex," consists of larger and thick-walled cells, fitting 

 more closely together than the cells of the middle cortex, 

 and showing a more regular arrangement. Near the 

 outside of this cortical layer a band of periderm is visible, 

 the cells of which do not, however, show any considerable 

 broadening towards the outside, as is often the case in 

 Stiginaria. The amount of periderm differs very much 

 in different parts of the circumference, sinking in one 

 place to only four layers of cells. In these thinner parts 

 it seems possible to recognise the innermost layer as the 

 phellogen, but in other regions it is impossible to discover 

 which is the generative layer. 



Close below the periderm there are distinct groups of 

 secreting tissue in the outer cortex, like those which have 

 been described by Seward for Le[)idophloios fidigiiiosus* 

 and for LepidopJiloios Harcourtii,\ and exactly similar to 

 those I have myself seen in the former species. 

 4. The rootlets. 



The external appearance of Xenophyion showed 

 unmistakable traces of rootlets, with a similar arrange- 

 ment to those of Stigviaria. 



In transverse sections, the vascular supply to these 



* Seward, A. C. ('oo). 



t Seward, A. C. and Hill, A. W. ('oo). 



