archegonium

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Fig. 43 Archegonium . Mature archegonium of Marchantia (Hepaticae).

archegonium

(pl. archegonia) the female sex organ of BRYOPHYTA, PTERIDOPHYTES and most GYMNOSPERMS.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Spores develop free, in direct contact with soil, water and light, whereas the fertilized eggs of archegoniates develop enclosed within cells of the preceding sexual generation.
Bower proposed that archegoniates were derived from a haploid alga in which chromosome-reduction followed immediately upon formation of a zygote that remained attached to the maternal thallus.
Pringsheim (1876b) and Scott (1895, 1896) proposed that archegoniates evolved from an alga with multicellular asexual and sexual thalli that were fundamentally alike.