(Botanique) Développement de l'embryon.
ETYM Pref. apo- + Greek gamos marriage.
(Botany) Development of an embryo without fertilization; (especially in some ferns) development of a sporophyte from the gametophyte without fertilization.
Biology, interbreeding in a separated group which has no characteristic differentiating it from parents; Botany, non-sexual reproduction in some ferns.