zygomorphic

Updated: May 9, 2025

Lateral pelories are generally of zygomorphic structure, though of course in a less degree than the normal bilabiate flowers, but they have unequal spurs, the middle one being of the ordinary length, the two neighboring being shorter, and those standing next to the opposite side of the flower being the shortest of all.

Hugo de Vries - Species and Varieties, Their Origin by Mutation

Through all this diminution the peloric type remains unchanged and therefore becomes so much the purer, the weaker the branches on which it stands. I am not sure whether such peloric flowers have ever been purely pollinated and their seed saved separately, but I have often observed that the race comes pure from the seed of the zygomorphic flowers.

Hugo de Vries - Species and Varieties, Their Origin by Mutation