Figure 3
From: Laguncularia racemosa leaves indicate the presence of potentially toxic elements in mangroves
Leaf micromorphology of Laguncularia racemosa from three mangrove sites in Rio de Janeiro State (Brazil), showing different epicuticular wax deposition, stomata and pore of salt secretory structure located in a cavity by electronic microscopy. (A,B) Marambaia (M) mangrove: epicuticular wax layer in crusts (cr) and scales near a stomatal pore. (C,D) Pedra de Guaratiba (PG) mangrove: epicuticular wax in plates (pl) in all surfaces, including next to stomata. (E–H) Coroa Grande (CG) mangrove: epicuticular wax in crusts with some rodlets (rd) over ordinary epidermal cells and stoma. (G,H): abaxial epidermis from CG mangrove showing opening of epidermal cavity (co) where secretory multicellular glandular trichomes are located. (A,C–H) Abaxial surface. (B) Adaxial surface.
