Assertion: female gametophyte | /r/MadeOf | only 4 nuclei
Facets:
value: in certain species of evening primrose
type: OTHER
Source sentences:
text: A number of variations in pattern of development of the female gametophyte occur in various angiosperms; for example, in certain species of evening primrose (Oenothera), the female gametophyte contains only 4 nuclei, whereas in Peperomia, as many as 16 may be present.