FIG. 2 in Internal secretory structures and chemical compounds in leaves of Conyza bonariensis (L.) Cronquist and Solidago chilensis Meyen (Asteraceae, Astereae)

FIG. 2. — Cavities and false duct in paradermal view: A, B, Solidago chilensis Meyen: A, false duct in surface, formed by attached parenchyma cells enveloping the cavities; B, large cavity showing lipophilic substances in the cavity space, oil droplets in epithelial cells, and attached parenchyma cells; C, Conyza bonariensis (L.) Cronquist, two cavities with oblique and superimposed ends, surrounded by several layers of attached parenchyma cells. Abbreviations: Apc, attached parenchyma cells; Cavs, cavities; Od, oil droplets in epithelial cells; Oe, oblique end cells; Ps, parenchyma sheath; Scale bars: 100 µm.