Leaf Epidermis of the Rheophyte Dyckia brevifolia Baker (Bromeliaceae)

Figure 1

Leaf blade of Dyckia brevifolia Baker, as observed in light microscopy. ((a), (b), and (c)) Cross sections. ((d)–(e)) Epidermis frontal view. (a) Flat adaxial surface. (b) Abaxial surface with bumps and depressions. (c) Adaxial surface. (d) Abaxial surface. (e) Abaxial surface, showing the epidermis and subepidermal sclerified cells (fibers) in the coastal zone. (Ae = aerenchyma; Cl = chlorenchyma; Sc = siliceous body; Ct = cuticle; Ep = epidermis; St = stomata; Sab = abaxial surface; Sad = adaxial surface; Fi = fibers; Hy = hydrenchyma.)