FIGURE 4.

Cuticle thicknesses for calyptrae and sporophytes for two developmental stages for four Funariaceae species. (A) Calyptrae (young and older data combined). (B) Young sporophytes. (C) Older sporophytes. For each species, cuticle thicknesses were measured from the periclinal cell walls of the epidermis. Average cuticle thicknesses (mean ± SE) were calculated for six individuals per species for the calyptra (N = 24), combining data from young and older calyptrae, and three individuals per species for the young and older sporophytes (N = 24). CL, cuticular layer; CP, cuticle proper; NS, no significant differences; letters inside bars indicate layers that are significantly different based on Tukey HSD post-hoc tests (P < 0.05) for cuticle layers with significant ANOVAs.