FIG. 19 in Fossil wood from the lower Miocene of Myanmar (Natma Formation): palaeoenvironmental and biogeographic implications

FIG. 19. — Burseroxylon sp., MNHN.F.50196 (C), MNHN.F.50197 (A, B, D-E, G, H), MNHN.F.50198 (F, I, J): A, D, Ts, vessels with tyloses (white arrow) and thin sheath of vasicentric parenchyma (black arrow); B, Tls, (1)-4-seriate rays, septate fibres (arrow); C, Rls, heterocellular rays with upright marginal cells; E, Rls, simple vessel-ray pits, oval in shape; F, Rls, heterocellular rays with upright marginal cells, some of them are enlarged and contain a single crystal (arrow); G, Rls, crystals in upright marginal cells (white arrow), maybe also in procumbent cells sometimes (black arrow); H, I, Ts, traumatic canals (arrows); J, Tls, tangential view of undifferentiated tissue surrounding a traumatic canal. Scale bars: A, 1 mm; B-D, F-H, J, 200 µm; E, 50 µm; I, 500 µm. Abbreviations: see Fig. 2.