Seeds and seed coat morphology in species of the Bolivian Clade A–D C. caballeroi E–H C. ceratocalyx I–L C. minutiflorum M–P C. neei Q–T C. coccineum A, Q seeds with testa partly digested B, F, G, J, O, R marginal testa pattern of treated seeds showing anticlinal cell walls punctate and densely papillate (G, O), punctate (J) and with ridge (R) C, H, K, P, S detail of testa cells D, L, T detail of papillae E, I, M treated seeds N linear hilum. Scale bars: 300 μm (A, E, I, M, N, Q); 50 μm (B, F, G, H, O, P); 20 μm (C, J, K, L, R, S); 5 μm (D, T).