Didonica subsessilis.  A: habit showing clasping and flat to involute leaves.  B: close-up of leaf base showing leaf axil with flower, and inset of leaf margin.  C: flower showing pedicel, bracteoles, calyx, and corolla in bud.  D: bracteole.  E: flower with bracteoles removed showing pedicel, bracteole scar, and calyx (from Hammell & Kress 8546, type).  Reproduced from Systematic Botany 16(4): 595, fig. 5.  1991.