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n. A single-celled or many-celled structure in which spores are produced, as in fungi, algae, mosses, and ferns. Also called spore case.

n. A case, capsule, or container in which spores are produced by an organism.

n. A spore case in the cryptogamous plants, as in ferns, etc.

n. In botany, a spore-case; the case or sac in cryptogamous plants in which the spores, which are the analogues of the seeds of the higher or flowering plants, are produced endogenously.

n. Also sporange.

n. organ containing or producing spores

"At the end of each of its branches it bears a cone made of scaly leaves; and fixed to the inside of each of these leaves is a case called a sporangium, full of little spores or moss-seeds, as we may call them, though they are not exactly like true seeds."

microsporangium    macrosporangium   

sporangia