FIGURE 6 in Establishment of the Hohenbergia capitata complex (Bromeliaceae) with notes on leaf anatomy and description of a new endangered species

FIGURE 6. Leaf epidermis of Hohenbergia species observed in surface view by light microscopy (A–E) and scanning electron microscopy (F–G). A–B, F. H. nidularioides. C–D, G. H. capitata. E. H. belemii. A. Adaxial epidermis, with silica-containing cells. B–C. Stomata on abaxial surfaces. D–E. General aspects showing the distribution of the scales, also known as peltate trichomes, on adaxial and abaxial surfaces, respectively. F. Detail showing the trichomes in rows and stomata in bands on the abaxial surface. G. Detail showing the polygonal and peripheral elongated cells of the shields on the adaxial surface. Legend: Arrow = stomata; arrowhead = silica body; mh = mechanical hypodermis; sc = scale; st = stoma. Scale bars: A, C = 25 µm; B, G = 50 µm; D–E = 0,5 mm; F = 100 µm.