PLATE LXVll. 



A cross sort ion cut through the mid-rib and adjacent tissue showing the 

 characteristic structure of this coriaceous leaf, which feature carries with it in 



this instance four rows of parenchvma on both sides of a narrow band of spongy- 

 tissue, and an epidermis particularly well pronounced. The wood fibres in two 

 or more rows entirely surround the bundle, which is bounded on both sides by a 

 narrow band of supporting tissue. The yield of oil is only 0-44 per cent., 

 consequently the oil glands are few in number, comparatively, in relation to the 

 thickness of" the leaf. This feature is well shown by comparing the plate with 

 E. Ausiratiana (Plate L), both sections having approximately the same 



magnification. 



EUCALYPTUS H/tMASTOMA. SM 



