Figure 1.
(a) Experimental image of a cross-section of cucumber epidermal tissue. This sample contains about 360 cells of which the neighbor relations can be determined. The image demonstrates both the significant polydispersity of the sample and the elongated shape of most cells. (b) Experimental data for the average area Ān of cells with n neighbors (Lewis’ law) from the original publications by Lewis [11, 14] (diamonds) and the present results (triangles down). The results from Lewis’ two publications [11, 14] are essentially indistinguishable, so the average of the two results is plotted here. Error bars are 95% confidence intervals.