In plants it is the gametophyte tissue that produces and houses the egg, and for a time supports the embryo
Female organs Archegoniën
Female reproductive organ containing a single egg cell.
DIAGRAM: PHOTO: Marchantia / Moss / Fern 1 / Fern 2
a female sex organ occurring in mosses, ferns, and most gymnosperms
a moss or liverwort "womb" with an egg inside at the bottom of a long tube
The female, egg-producing reproductive structure on the gametophytes of non-flowering land plants. The archegonium is comprised of an oogonium surrounded by protective layers of thick-walled, pigmented cells, and may be differentiated into an elongated neck reagion and an expanded basal region, called the venter, which contains the oogonium and egg.
(pl. archegonia) The female sex organ of liverworts, mosses, ferns, and most gymnosperms. It isusually a flask-shaped organ, comprising a swollen base or venter containing asingle egg-cell and a slender elongated neck containing one or more layers ofcells.
the structure that produces the female gamete or egg. pl. archegonia.
(pl. archegonia) The flask-shaped female reproductive organs and contains the egg which becomes the sporophyte.
the fertile organ of a female gametophyte or the female organ of a bisexual gametophyte, in which female gametophytes are formed. cf. antheridium.
Found in plant species that have alternation of generations. This is the structure on the gametophyte plant that contains the female gametes. The male gametes swim through a surface film of water to reach the archegonia and fertilise the female gametes inside them.
The organ on a gametophyte plant which produces the egg cell, and nurtures the young sporophyte.
In the reproductive cycle of ferns, the female organ which forms on the underside of the Prothallium and produces the egg which is fertilized by spermatazoides from the Antheridia or male organ. The fertilized egg then produces the plant we think of as a fern.
An archegonium (pl: archegonia), from the ancient Greek αÏχη (beginning) and γονος (offspring), is a multicellular structure or organ of the gametophyte phase of certain plants producing and containing the ovum or female gamete. The archegonium has a long neck and a swollen base. Archegonia are typically located on the surface of the plant thallus, although in the horned liverworts they are embedded.