Search for factors influencing corolla color in flowering plants: main problems and ways to solve them

In this review, we tried to summarize the results of all more or less noticeable works carried out in recent years and devoted to the search for ecological factors influencing the corolla color in flowering plants. The influence of various factors on corolla color has been established, including temperature, precipitation, soil characteristics, geographic latitude and longitude, distance from the place of species origin, interaction with pollinators, and in some cases the nature of such influence has been analyzed. However, it should be noted that the results obtained are rather scattered and relate to particular species, groups or phytocenoses. Significant efforts remain to be done to summarize the particular results into an overall picture, and we offer and justify our proposals for the direction of future research.