apogamy

from WordNet (r) 3.0 (2006)

apogamy
    n 1: (botany) development of an embryo without fertilization;
         especially the development in some ferns of a sporophyte
         from the gametophyte without fertilization

from The Collaborative International Dictionary of English v.0.48

Apogamy \A*pog"a*my\, n. [Pref. apo- + Gr. ? marriage.] (Bot.)
   The formation of a bud in place of a fertilized ovule or
   o["o]spore. --De Bary.
   [1913 Webster]

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