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Embryo development in Capsella

Legend:

1  suspensor
3  endosperm
4  integument
2  proembryo

English name: Shepherd's purse
Scientific name: Capsella bursa pastoris
Familia: Brassicaceae
Classis: Dicotylodones
Phylum: Angiospermae
Regnum: Plantae

Spherical shaped stage during embryo development. The protoderm from which later the epidermis will develop is clearly present.
Proceed to the heart-shaped stage