Figure 3.

Dionaea sp, the Venus flytrap (A-B) and Drosera sp (C-E). A: Dionaea modified leaves are divided in two parts, the upper (ul) and the lower leaf (ll). B: The upper leaf has two lobes which center is brightly colored red and contains three sensitive trigger hairs (arrows). The free edge of each lobe is lined with spine-like projections or cilia. C: Drosera have sticky, highly modified colorful leaves that are capable to move acting like small insect traps. D-E: The leaves have several glandular trichomes with mucilage droplets on their apex, commonly called hairs or tentacles. When an insect gets stuck to the tentacles, it acts as a mechanical stimulation which causes the leaf to curl toward and around the prey.