Fig. 2

a A. digitata above glow with cracked shell by heat. b Decomposed fire-facing side after test. c Same fruit, view inside after test less than 10 min above glow with partly unburned and browned pulp. d Another fruit opened with heavily smouldered parts after test more than 10 min above glow. e A. gregorii above glow. f Same fruit, fire facing side after test. g Another fruit, in one case, ongoing smouldering of fruit shell (heat source was already removed) with successive shell decomposition and complete loss of seeds. All scale bars 50 mm