PLATE 54 A: COFFEA ARABIC A L. 



Epidermis and Endosperm: — Transverse Section. 



Magnification 500 X. 



<1 



PLATE 54 B: COFFEA ARABIC A L. 



r Polygonal cells. 

 Endosperm ■< Knotty cell walls, 

 [oil globules. 



Transverse Section. 



Magnification 500 X. 



152 



