pelorism

Before leaving the labiates, we may cite a curious instance of pelorism in the toad-flax, which is quite different from the ordinary peloric variety.

Species and Varieties, Their Origin by Mutation Hugo de Vries 1891

Some families are more liable to pelorism than others.

Species and Varieties, Their Origin by Mutation Hugo de Vries 1891

Many cases of pelorism afford promising material for further studies of experimental mutations.

Species and Varieties, Their Origin by Mutation Hugo de Vries 1891

As pelorism is strongly inherited (and [I] have just got a curious case of this in a leguminous plant from India), would it not be worth while to fertilise some of your early flowers having additional organs with pollen from a similar flower, and see whether you could not make a race thus characterised?

More Letters of Charles Darwin — Volume 2 Charles Darwin 1845