Question

Ymnosperms. They are much-reduced and embedded in the megagametophytes of gymnosperms. The term is not used for angiosperms or the gnetophytes gnetum and welwitschia because the megagametophyte is reduced to just a few cells, one of which differentiates into the egg cell.

Answer 1

An archegonium (pl: archegonia), from the ancient Greek , is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete. The corresponding male organ is called the antheridium. The archegonium has a long neck canal or venter and a swollen base. Archegonia are typically located on the surface of the plant thallus, although in the hornworts they are embedded