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Term Definition
Inner integument extruded An inner integument that is longer than the outer integument and forms the micropyle. Placentation of Gustavia grandibracteata as seen in cross section. Photo by N. P. Smith.
Integument The outer covering of the ovule that develops into the testa or seed coat; it may be composed of one or two layers, the inner and outer integuments, respectively. Parts of an ovule. Drawing by C.-H. Tsou.