Figures & data
Figure 1 Two types of perianths in the sexually deceptive orchid genus Ophrys. O. cephalonica (A) possesses a green perianth which appears similar in colour to the leaves and stem. O. heldreichii (B), in contrast, shows a conspicuous pink perianth. Males of Eucera (Tetralonia) berlandi (C) have enlarged eyes and antennae compared to their females and are the pollinators of O. heldreichii.
Figure 2 Frequency of Ophrys species which possess a green (green column) and a pink or white (pink column) perianth and are pollinated by Andrena (A) and Eucerini (B) males.
