Details of abaxial cuticles prepared from the leaf lamina region of ginkgophyte leaf with putatively attached seeds. a: Stomatal complexes of figure 5in detail. Scale bar 100 μm. b: Inner side of the abaxial cuticle of the lamina; at the right margin the surface of the outside is also visible (detail in figure 6 c) (SEM). Scale bar 100 μm. c: The nearly smooth outside of the abaxial leaf cuticle with papillae, indicating a stoma slit. The whitish spots on the surface probably derive from the wax layer (SEM). Scale bar 50 μm. d: Inner side of the abaxial leaf cuticle with two stomata (SEM). Scale bar 50 μm.