Figure 1: Summary of floral traits involved in plant-pollinator interaction. The left flow-chart shows the sequence of floral traits involved in pollination, whereas the right side shows the divergence of these traits between closely related species pairs in sexually deceptive orchids. Dark squares refer to Ophrys; grey squares to Chiloglottis. Floral trait data were extracted from Table 1 and Table S1; error bars represent standard error.