An archegonium, from the Ancient Greek ἀρχή and γόνος, is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete. The corresp

A gametangium is a sex organ or cell in which gametes are produced that is found in many multicellular protists, algae, fungi, and the gametophytes of plants. In contrast to gametogenesis in animals,