The esescia egg (eh-SEH-see-uh) is the organic vessel in which the sapling embryo of the esescia tree first begins to develop. Esescia eggs are grown in great numbers on the branches of the tree and fall to the ground after reaching the necessary stage of development (the "drop stage"). The embryos then hatch after ten to twenty days, and the saplings literally crawl a few hundred feet away before burying themselves almost entirely into the soil and spreading roots.