Fruit and seed morphology in Tradescantia subg. Austrotradescantia. A mature and dehisced capsule of T. cerinthoides B dorsal and ventral views of the seed of T. crassula, showing the costate testa cleft towards the embryotega and the hilum longer than ½ the length of the seed C dorsal and ventral views of the seed of T. hertweckii, showing the costate testa not cleft towards the embryotega and the hilum equal to ½ the length of the seed D dorsal and ventral views of the seed of T. atlantica, showing the rugose testa not cleft towards the embryotega and hilum shorter than ½ the length of the seed. Photos by M.O.O. Pellegrini.