A TEXT-BOOK OF BOTANY 



FlG. 176. Glycyrrhiza: A, transverse section; B, longitudinal section. B, bark; 

 H, wood; X. cambium zone; ph, cork cells; rp, cortex; p, parenchyma; k, crystal fibers; 

 s, sclerenchyma fibers, including wood fibers occurring in the wood and bast fibers present 

 in the bark; t, tracheae; m, medullary rays. After Meyer. 



