Figure 1

Pollination syndromes. Bee-pollination syndrome: a) Dillwynia uncinata, showing the wing and keel that together act as a trigger mechanism. When a bee pushes down on the wings of a pea flower, the wings separate and trigger the sexual parts to rise out of the keel and deposit pollen from the anthers onto the bee. b) Flowers of Gastrolobium pyramidale. Bird-pollination syndrome: c) Leptosema aphyllum, showing the resupinate orientation and large size. d) Flowers of Gastrolobium rubrum. Figure a) adapted from Gross [16].