Compare the structure of a non-endospermic (non-albuminous) seed with an endospermic (albuminous) dicot seed.

Non-endospermic Seed

       Endospermic Seed

1. The testa is soft and thin.

2. The endosperm is absent.

3. The cotyledons are thick.

4. The food is stored in the cotyledons.

Examples : Pea, Bean and Mustard.

1. The testa is very hard and brittle.

2. The endosperm is present.

3. The cotyledons are thin and papery.

4. The food is stored inside the endosperm.

Examples : Rice, wheat, maize, castor.