Longitudinal sections of prickly pear cladodes (Opuntia ficus-indica) of the Floreadora cultivar. C= cuticle (A), E= epidermis (B), Col= collenchyma (C), D= druses (calcium oxalate crystals) (D, J), Est= stoma (E), P= parenchyma (F, G, I), M= mucilage (H), X= xylem (F, G). Bar= A, B, F, and J 40 µm, 10X; C, D, E, G, H, and I 10 µm, 40X.