If you are annotating to this structure for Zea mays or other grasses, please also add an annotation to the corresponding floret type. Choose the most specific term possible from: spikelet floret (PO:0009082), ear floret (PO:0006354), upper floret of pedicellate spikelet of ear (PO:0006350), upper floret of sessile spikelet of ear (PO:0006352).

A sporocyte (PO:0006204) that produces four haploid (1n) megaspores (PO:0020019).

PO:0006463

PO:0006493

大胞子母細胞 (Japanese, exact)

megasporocito (Spanish, exact)

megaspore mother cell (exact)

MMC (exact)

Poaceae megasporocyte (narrow)

Zea megasporocyte (narrow)

plant_anatomy

PO:0000431