Such alone are the unimportant differences which Gartner is able to point out between hybrid and mongrel plants.

On the other hand, the degrees and kinds of resemblance in mongrels and in hybrids to their respective parents, more especially in hybrids produced from nearly related species, follow, according to Gartner the same laws.

When two species are crossed, one has sometimes a prepotent power of impressing its likeness on the hybrid.

So I believe it to be with varieties of plants; and with animals, one variety certainly often has this prepotent power over another variety.