Table 3 What happens in an S₂A_h/S₃A_h flower. Only S₄A_h, S₅A_h and S₁A_m pollen grains germinate. Half of the ovules are fertilized by S₁A_m pollen grains, produced only by males. Half of the ovules are fertilized by S₄ or S₅ pollen grains, half of which are produced by males, and the remaining half by hermaphrodites, which are thus not cryptic females (even though the male proportion in the population is 0.5). Males thus contribute all S₁A_m alleles and 1/2 of non-S₁A_m alleles, whereas hermaphrodites contribute 1/2 of non-S₁A_m alleles

From: A model for the evolution of high frequencies of males in an androdioecious plant based on a cross-compatibility advantage of males