_ 10 - VICIA, 



18. Histology of Root. Draw the prepared section of a root under the low 

 power, showing : cortex ; stele, consisting of pericycle, xylem, protoxylem, phloem, 

 cambium and pith. In the demonstration of a young root notice, in the cortex, the 

 piliferous layer and root-hairs, ground tissue and endodermis, 



19. Histology of Root. Draw a sector of the section under the high power to show 

 the detailed structure of each tissue. 



