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The Development of a Spore-case

(Sporogonium)

After the union of the sperm-cell of the antheridia, with the egg-cell of the archegonium, a division of the egg-cell takes place, which brings about a multiplication of cells, the ultimate result of which is a mass of tissue called a sporogonium, which is the fruit of the moss made up of the lid, spore-case, teeth, annulus, spores, and columella. (See diagrams on pages 48 and 53.)