After the resting period the zygote or oospore elongates and then divides by transverse division forming two cells be basal cell and terminal cell.
The basal cell remains towards the micropylar end do not divided further and produces a large swalled vesicular suspensor cells .It may functions as haustorium .
The terminal cell divides by another transverse wall forming two cells.
The top cell after a series of divisions forms plumule and a single cotyledon .
The cotyledons is called as scutellum and it grows rapidly and pushes the terminal plumule to one side .The plumule comes to lie in a depression .
The middle cell undergoes repeated divisions and forms hypocotyl and radicle .
The middle cell also adds a few cells to the suspensor .
In some monocots e.g. in cereals ,both plumule and radicle are covered by sheaths developed from the scutellum called as coleoptile and coleorhiza respectively .
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