plant ovule integument plant ovule outer integument PO:0006459 integumento externo (Spanish, exact) 外珠皮 (Japanese, exact) PO:0020023 A plant ovule integument (PO:0020021) which is the outermost the two layers of tissue that usually cover the plant ovule (PO:0020003), contiguous to the nucellus (PO:0020020) and usually contributing to the formation of the plant ovule micropyle (PO:0020025) at the apex. plant_anatomy 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). Poaceae outer integument (narrow)