This information was supplied by Barbara Kincaid, Florida. Seeds of Atlantic Giant. Atlantic Giant produces two types of seeds. Both types are larger than a man's thumbnail. The other type has a white coat and a flatter profile.
Some growers use only the white seeds, others prefer the thick brown seeds.
They are quite imposing to look at. The Cotyledons - Seed Leaves. Like all dicots, pumpkin seeds consist of an embryo which has two cotyledons which contain the food to get the young plant started. Atlantic Giant plants are giants from the very beginning. As the plant matures, it is not uncommon to see vines larger in diameter than a silver dollar.