FIGURE 7 in Erythroxylum confertifolium, a new species from Chapada dos Veadeiros National Park, Goiás, Brazil, unveiled by morphology and leaf anatomy

FIGURE 7. Cross sections of the petiole of Erythroxylum campestre A. St.-Hil. (a–d), E. confertifolium M.J. Silva (e–h), and E. parvistipulatum Peyr. (i–l). a, e, and i. General aspect of the main vascular bundle. b, f, and j; Detail of the fibers, phloem, sclereids, and xylem; c, g, and k; Rhomboid crystals (in polarized light: g, and k; d, h and l. Detail of vascular bundles and pith. fi = fibers. ph = phloem. pi = pith. sc = sclereids. vb = vascular bundles. xy = xylem. asterisks = phenolic compounds. arrows = rhomboid crystals. Scale bars: a, d, e, h, and l = 200 μm; b, f, and j = 50 μm; c, g and k = 20 μm.