Comparisons of pod and seed characters between Sindora × changiensis and its parent species A, B, C pods of (A) S. coriacea, (B) S. × changiensis and (C) S. echinocalyx respectively, showing the unarmed pod of S. coriacea, the sparsely spiny pod of Sindora × changiensis, and the densely spiny pod of S. echinocalyx D, E, F seeds of (D) S. coriacea, (E) S. × changiensis and (F) S. echinocalyx respectively. Scale bars: 1 cm (A, B, C, D, E, F). (Photos: L.M. Choo).