Gonocalyx amplexicaulis.  A: habit.  B: close-up of leaf undersurface showing scarious margin with teeth and glandular fimbriae.  C: portion of inflorescence showing floral bract, pedicel with glandular fimbriae, bracteoles (close-up), calyx, and base of style.  D: corolla.  E: longitudinal section of calyx.  F: stamens showing lateral, ventral, and dorsal views (from H. W. Churchill 5522, type).  Reproduced from Systematic Botany15(4): 746, fig. 1.  1990.