Figure 6 in Experimental induction of resins as a tool to understand variability in ambers

Figure 6. Experimental Wollemia nobilis examples: (a–b) branch treatment in which three upper branches were removed to mimic noncatastrophic damage; (c–d) burn treatment in which each tree was burned on one side creating a burn 6 cm in length along the trunk to mimic a wild fire burning at a low level; (a) day 1 of branch treatment with three cuts (arrowheads); (b) final day of branch treatment (same tree as a with small amounts of viscous resin visible at each cut site); (c) day 1 of the burn treatment with no apparent resin exuded; (d) final day of burn treatment with minimal resin exudation (arrowhead).