Fig. 5
De Finnetti diagram of floral morph frequencies in 71 populations of Pontederia parviflora sampled in the Pantanal wetlands. Trimorphic (three floral morphs) and dimorphic (two floral morphs) populations are represented as triangles and squares, respectively. The theoretical isoplethic equilibrium is indicated by the black filled circle. Dark gray triangles correspond to isoplethic populations (n = 34) and light gray triangles and squares to anisoplethic populations (n = 37), based on Chi-square tests (see Materials and Methods). The white filled triangle is the overall frequency based on all inflorescences counted in all populations
