CANE SUGAR. 



6. Thin-walled cells of the ground tissue or parenchyma. 



7. A large vascular bundle found toward the centre of the stem. 



In Fig. 4 is shown more highly magnified a bundle corresponding to 7 

 in Fig. 8. 



1 . A vessel with unbordered pits. 



2. An annular vessel. 



3. A sieve tube with the companion cells, making up the phloem. 



4. An intercellular air space. 



5 and 7. Thick- walled mechanical elements, the fibres, or sclerenchyma 

 forming a sheath around the bundle. 



6. Ground tissue or parenchyma. 



When seen in longitudinal section the cells of the parenchyma are found 

 to be rather longer than wide. 



6 



