Fig. 5.

Transmission electron micrographs of transverse sections through the calyptra rostrum of Funaria hygrometrica. The outermost edge of the epidermal cells are shown. The upper edges are facing the exterior environment. (A) Rinsed with water only prior to processing for TEM; the calyptra cuticle is completely intact; the electron-dense cuticle proper (eDCP) layer is present. (B) Rinsed with chloroform, ethanol and water; a portion of the calyptra cuticle has been removed; the eDCP layer is absent and noted by an asterisk. Scale bars = 500 nm.