Psammisia flaviflora. A: habit. B: flower. C: corolla. D: longitudinal section of calyx showing position of stamen. E: stamen, side view (LUTEYN et al 8756). -- Psammisia aurantiaca. F: habit. G: corolla. H: pedicel and calyx. I: stamen, front view. J: stamen, side view (LUTEYN et al. 8806, type). -- Reproduced from Opera Botanica 92: 119, fig. 7 (1987). Drawing by B. Angell.