Figure 1 Graphic representation of the treatments used in the experiment. For the heterospecific treatment, a mix of conspecific pollen from a different individual and of heterospecific pollen from a heterospecific individual was applied to the recipient flower. For the conspecific control, on the same recipient plant a second flower was treated with conspecific pollen only. Both heterospecific and conspecific treatments of the same pair would use pollen from the same conspecific pollen donor individual. Pollen amount used was always saturating.