Tradescantia fluminensis Vell. A habit, showing the mat-forming prostrate stems B detail of the stem and leaf-sheath, showing the setose margin of the leaf-sheath and the subpetiole C adaxial side of the leaf-blade, showing the impressed secondary veins D detail of the inflorescence, showing the saccate cincinni bract base, the plicate petals and the pistil as long as the stamens E floral bud, showing the dorsally keeled sepals and the pilose indumentum restricted to the keels F front view of a flower, showing the plicate petals G dorsal and ventral views of the seed, showing the costate testa not cleft towards the embryotega and the hilum ca. ½ the length of the seed. Photos by M.O.O. Pellegrini.