- plant anatomy
- exact: portion of ovule primordium tissue
- exact: primordio de óvulo (Spanish)
- exact: 胚珠原基（可視的） (Japanese)
- A floral structure primordium (PO:0025477) that is committed to the development of an ovule (PO:0020003). [source: ISBN:0471245208, POC:curators]
- The transition from ovule primordium to ovule occurs when an integument (PO:0020021) begins to develop from the protoderm (PO:0006210).
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