Models (M1-M8) for the description of seeds in Silene species.

Models used in the description of seeds from Silene species. Model 1, the cardioid curve, corresponding to Equation 1, was obtained from Mathematica. Models 2 to 4 were obtained by the modification of Equation 1 searching for similarity with the outlines of particular seed images.

Models 5 to 8 are described in Ana Juan et al. (Ms. in preparation)