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These summer forms are known as the stem mothers or agamic females.

Stem-mother: in plant lice; that form hatching from the winter egg, which starts a series of agamic summer generations.

Mathematics should be taught only in its rudiments, and those with special talents or tastes for it should go to agamic schools.

Common apple aphis showing a winged and wingless agamic summer forms at a and c, one with wing pads formed at b, and a recently born young at d.

Budding: applied to that form of agamic reproduction found in plant lice.