of Sugar Car 
A.—Cross section through the lower surface of mature midrib. The sclerenchyma of the large 
bundles is continuous with the lignified epidermis. X165. 
B—Tangential section through a mature leaf. From left to right: Sclerenchyma fiber, chlorophyll- 
bearing bundle sheath, spongy parenchyma, bulliform cells, spongy parenchyma. X340 
C.—Radial section through a mature leaf. The upper epidermis in this section is composed of 
bulliform cells X340. 
D —Surface view of epidermis of leaf-bearing stomateS. X816. 
