Cavenishia sirensis.  A: habit.  B: immature inflorescence.  C: flower in bud showing glandular-thickened corolla lobes.  D: alternate stamens, ventral view.  E. stamen, dorsal view (A, C-E from Dudley 13316;  B from Dudley 13231, type).  Redrawn from Brittonia 30(4): 427, fig. 1.  1978.