WRIGHT : THE GENUS DIOSPYROS 
with unlike elements. When one end tapers the appearance 
is very similar to that of a short fibre. 
There is a little variation in the transverse, but consider¬ 
able in vertical dimensions throughout the species. In some 
species the relatively large 
dimensions aid 
wood of young 
materially in distinguishing them 
The following are the dimensions of these elements 
in the sapwood of the respective species :— 
0*015 ... 
0-014 ... 
0015 ... 
0*014 ... 
0*016 ... 
0*014 ... 
0*017 ... 
0*013 !" 
0*08 to 0*20 
0*08 to 0*18 
0*08 to 0*14 
0 09 to 0*15 
0 05 to 0*13 
0*05 to 0*18 
0*06 to 012 
0*07 to 0*20 
,0*07 to 0*18 
0*06 to 0*19 
The thickness of the wall varies from 0*001 to 0*0016 mm. 
These are the average radial dimensions and variations 
length of the wood parenchyma cells in the sapwood of 
the several species. The age of the trees and the climates 
under which they have grown are widely different, though 
the above does not show any remarkable variation. 
Wood Fibres. These compose the greater part of the 
. y a great extent for the 
of Hi f mber - T ^ e occurrence in large numbers 
of these elements of greet length, with thick wells end 
narrow lamina, enhances the value of any timber 
