Murdannia engelsii M.Pell. & Faden. A Sandy banks of rio Teles Pires, white arrow showing a subpopulation of M. engelsii B detail of the stem, showing the conduplicate and falcate leaves, with amplexicaul bases C detail of the inflorescence, showing the deflexed pedicels at post-anthesis D side view of a male flower, showing the short and bent style. E front view of a bisexual flower, showing the long curved style F detail of a young fruit, showing the pedicel and sepals with glandular hairs, gently curved style and capitate stigma G–J seeds: G dorsal view of a seed, showing the scrobiculate and cleft testa, and the semilateral embryotega H ventral view of the same seed, showing the ventral furrows and tan appendage surrounding the hilum I dorsal view of another seed, showing the shallowly scrobiculate and slightly cleft testa, and the semidorsal embryotega J ventral view of the same seed, with the appendage removed, showing the linear hilum in a shallow depression. K, dorsal view of a seed, showing the smooth testa. Photographs A–F by M.E. Engels, G–J by R.F. Almeida.