EUCALYPTUS OIL GLANDS. 



217 



Eucalyptus Smithii R. T. Baker. 



b. Transverse section of a leaf bud, including the young stem, 



showing oil glands in various stages of the leaf development, x 55. 



« 



Plate XIII. 

 Eucalyptus Smithii R. T. Baker. 



a. Cross section of a very young leaf illustrating how important 

 a feature the oil glands are at this stage in its development since 

 such a large amount of space is taken up by them. x 110. 



Eucalyptus Smithii R. T. Baker. 



b. Transverse section of a young leaf at a somewhat later stage 

 than the preceding figure, the largest cavity represents a compara- 

 tively late stage in the development of the gland. The glands are 

 here, as is usual, directed towards either surface. x 65. 



Plate XIV. 



Eucalyptus Luehmanniana F.v.M. 



Transverse section of a young stem showing the deep-seated 

 nature of the oil glands. This is evidently brought nbout by 

 growth of the stem due to th« phellogen. x 40. 



Technological Museum, Sydney. 



