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Histochemical analyses with hand-sectioned fresh material (T1) in Miconia albicans stems. T1: Hand-sectioned fresh material submitted to the histochemical reactions. Arrows: Sites of positive results. Scale bars: 200 µm. Abbreviations: cx, cortex; pi, pith; xy, xylem; mb, medullary bundle; tr, trichome; DMACA, p-dimethylamino-cinnamaldehyde.
