Fig. 3. Diagram of the interactions between the flower and its bee pollinator. A and B, Bees attempting copulation with sepals (A) or petals (B). C, Bee falling into the flower tube. D, Trying to escape, the bee accesses the space between the lip and column, fixing the pollinarium on its scutellum. E, The bee leaves the lip, removing the pollinarium. F, The bee eventually leaves the flower.