Plate P3. Vitrinite showing fluorescence from cell walls. 4. T5809; Hole 1109D; 387.86 mbsf. Same as figure 3, but in fluorescence mode. Oblique section of wood preserved as telovitrinite with cell structures outline by fluorescing cell walls. Some structures are probably present within the cell walls, and some fluorescence can be seen from the floors of some cells, with the fluorescence being transmitted through the cell contents (reflected light; field width = 0.22 mm; vitrinite reflectance [cell contents] = 0.34%).