megasporogenesis
megaspore development
exact
megaspore mother cell meiosis
exact
meiosis of the megasporocyte
exact
meiotic division of the megasporocyte
exact
The process in which the megasporocyte undergoes meiosis, giving rise to four haploid megaspores in the nucellus.
GO:0048236
plant-type sporogenesis
is_a
GO:0009553
embryo sac development
part_of