Figure 6
From: Trap diversity and character evolution in carnivorous bladderworts (Utricularia, Lentibulariaceae)
SEM images of trap entrance and trapdoor of U. longifolia representing the UPTT. (A and B) Sagittal sections through the tubular trap entrance. Clearly visible are the trigger hairs, the free door edge and a weak cavity on the threshold. In B) also mucilage sticking to the threshold can be seen. (C) View on the inner door surface. A pattern of concentric constrictions is faintly visible. Scale bars = 100 µm. Abbreviations: c = cavity, de = door edge, m = mucilage, th = threshold, tr = trigger hairs.
