Assertion: pistil's ovule | /r/HasProperty | megaspore
Facets:
Source sentences:
text: Female gametophytes of flowering plants develop within the ovule (megaspore) contained within an ovary at the base of the pistil of the flower.
text: Female gametophytes of flowering plants develop within the ovule ( megaspore ) contained within an ovary at the base of the pistil of the flower.