Cavendishia callista.  A: habit.  B: calyx, pedicel, and bracteoles, note also calyx lobe and bracteole glands and calyx base apophysis.  C:  bracteole, undersurface.  D: bracteole, upper surface (A-B from Forero et al. 3471;  C from Luteyn 3012;  D from Forero et al. 2200).  Reproduced from Flora Neotropica Monograph 35: 262, fig. 77.  1983.