HAIRS AND EMERGENCES 



145 



1. The radial rows of cork-cells, with the phellogen 

 on the side next the stem. 



2. A band of cells outside the cork, which are of 

 yellowish colour, and the individual cells are rounded, 



itercellular spaces between them ; thus 

 ?h has been styled the abciss layer, is 



of the tissues of the leaf are almost 



e exception of crystals : those of the 



e layer of cork, have plentiful proto- 



ch. 



may also be made of similar material of 



, or Walnut, which are well adapted for 



process of defoliation. 



IRS AND EMERGENCES. 



1 ; ! 



:: I eil|io r ences have already been observed on the stems 

 [described : as there is in different plants great 

 Ifm and structure of these outgrowths, a, series 

 ] types will now be mentioned as suitable for 



i i<>et!nlar. On the stem of tho Klin the si 





