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nounlarger of the two types of spore produced in heterosporous plants; develops in ovule into a female gametophyte
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type of:
Definition that contains megaspore
- macrosporangium a plant structure that produces megaspores
- megagametophyte the female gametophyte produced by the megaspore of a plant that produces both microspore and megaspores
- megasporangium a plant structure that produces megaspores
- heterospory the development of both microspores and megaspores