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archegonium

Translation
archegonium
—archegonial, archegoniate /ahr'ki goh"nee it, -ayt'/, adj.
/ahr'ki goh"nee euhm/, n., pl. archegonia /-nee euh/. Bot.
the female reproductive organ in ferns, mosses, etc.
[1850-55; < NL, equiv. to archegon- ( < Gk archégonos first of a race; see ARCHE-, GONO-) + -ium < Gk -ion dim. suffix]

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▪ plant anatomy
      the female reproductive organ in ferns (fern) and mosses (moss). An archegonium also occurs in some gymnosperms (gymnosperm), e.g., cycads and conifers. A flask-shaped structure, it consists of a neck, with one or more layers of cells, and a swollen base—the venter—which contains the egg. Neck-canal cells, located above the egg, disappear as the archegonium matures, thus producing a passage for entry of the sperm. The sperm are produced in the corresponding male reproductive organ, the antheridium.

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Universalium. 2010.

  
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