In botany, the corolla designates the part made up of all the petals of a dichlamydial flower (i.e. having a calyx and a corolla). It forms a crown between the calyx and the stamens, and its petals, usually larger than the calyx sepals and colored, represent the most beautiful part of the flower. The corollas can be dialypetalous, with petals independent of each other, or gamopetalous, with petals united together like a tube.