Here the mother and father elements are found in the same flower.

At the base of the flower, packed in a delicate casket, which is called the ovary, lie a number of small white objects no larger than butterfly-eggs.

These are the eggs or ova of the primrose.

Into this casket, by a secret opening, filmy tubes thrown out by the pollen grains--now enticed from their hiding-place on the stamens and clustered on the stigma--enter and pour a fertilizing fluid, called "spermatozoa," through a microscopic gateway, which opens in the wall of the egg and leads to its inmost heart.

The ovule, or future seed, is now fertilized and capable of producing a future primrose.