Siderasis albofasciata M.Pell. A habit, showing the well-defined white stripe along the midvein of the leaves and the flagelliform-shoots with terminal rosettes B detail of the abaxial side of the leaf, showing the light-brown lanate indumentum C detail of the adaxial side of the leaf, showing the light-brown hispid indumentum D detail of the inflorescence, showing the solitary cincinnus E flower F detail of the androecium and the gynoecium G detail of the capsules, the left one immature with evident accrescent sepals and the right one mature H detail of an open capsule, showing the biseriate to partially uniseriate, arillate seeds I dorsal view of a seed, showing the semi-lateral embryotega and the cream-colored, slightly translucent and thick aril. Photograph F by L. Kollmann, remaining by M.O.O. Pellegrini.