FIGURE 4 in A new species of Guadua (Poaceae: Bambusoideae: Guaduinae) from Pará state in Amazonian Brazil

FIGURE 4. Foliage leaf blade anatomy and micromorphology of Guadua leonardoana. Light microscopy (A, D, G, H, J, K, L); Polarized light microscopy (I) Scanning electron microscopy (B, C, E, F). A–C. Epidermis in front view, adaxial surface. D–F. Epidermis in front view, abaxial surface. G–L. Leaf blade in cross section. G. Midrib. H–J. Mesophyll. K. Outer margin. L. Inner margin. Arrowhead: sclerenchyma sheath; arrow: parenchymatic sheath, ab: abaxial epidermis, ac: arm cell, ad: adaxial epidermis, bc: bulliform cell, cv: cavity (fusoid cells region), rc: rosette cell, sc: silica cell, scl: sclerenchyma, st: stoma. 1vb: firs-order vascular bundle, 2vb: second-order vascular bundle. Scale bars: A, B, D, E, H: 50 μm; C, G, I, J, K, L: 100 μm; F: 20 μm. (E. A. L. Afonso 433).