Most grass embryos have a flap-like structure known as the epiblast.

大数禾本科有一瓣状结构通常为外叶。

The mature embryo is corn posed of radicle, coleorhiza, plumule, coleoptile, scutellum and epiblast.That is the typical structure of the mature embryo of grass.

成熟具有根、、盾、鞘、根鞘、外叶等典型禾本科植物成熟的结构。