Fig. 1.

Parsimony reconstruction of flower colors and pollination system in hypothetical group of 8 plant species. There are two possible states for pollinator, where the black squares represent bee pollination and the gray squares moth pollination. There are two flower colors, blue (dark circles) and white (open circles). Inferred changes in pollinators and flower colors are marked on the tree with bars. The scenarios in (A) and (B) are consistent with the hypothesis that white flowers evolved as an adaptation for moth pollination whereas the scenario in (C) suggests that the evolution of white flowers was not driven by the evolution of moth pollination because the flower color change occurred in bee-pollinated lineage.