Ceratostema nodosum, A-C.  A: habit showing nodding inflorescence.  B: flower showing pedicel, one bracteole, calyx, and corolla.  C: four adjacent stamens showing ventral view with inset of dehiscence clefts (from Luteyn & Lebrón-Luteyn 6745, type).  Ceratostema fasciculatum, D-F.  D: habit.  E: flower showing floral bract, pedicel, bracteoles, calyx, and corolla.  F: inset of dehiscence clefts of stamens (from Luteyn et al. 6633, type).  Redrawn from the Journal of the Arnold Arboretum 67: 490, fig. 2.  1986.