Seeds and seed coat morphology in species of the Andean Clade A–D C. hookerianum E–H C. piuranum I–K C. rhomboideum A untreated seed B, E treated seeds C, D, G, J, K testa pattern of treated seeds showing anticlinal cell walls punctate (C, D, J, K) and papillate (G) F hilar zone H detail of testa cells densely papillate I seed partly digested. Scale bars: 200 μm (A, B, E, I); 20 μm (C, D, F, G, H, J, K).