Endospermic seeds are present in which among the following plant species?

All of these

Endosperm may either be completely consumed by the developing embryo (e.g., pea, groundnut) before seed maturation or it may persist in the mature seed (e.g. castor and coconut ,barley, maize , wheat ) and be used up during seed germination.

Endosperm is a tissue that surrounds the embryo in a seed. It is a food reserve that is used by the embryo to grow and develop. In some seeds, the endosperm is completely consumed by the developing embryo, while in others, it remains as a storage tissue.

Non-albuminous seeds, on the other hand, do not have a large amount of endosperm. The embryo in these seeds uses the food reserves in the cotyledons for nourishment. The cotyledons are the seed leaves, and they are the first leaves to emerge from the seed. Pea and groundnut are examples of seeds in which the endosperm is completely consumed by the developing embryo. This means that the only food reserve that is available to the embryo is the cotyledons. Cotyledons are the first leaves that develop on the embryo. They are also known as seed leaves.

Albuminous seeds are seeds that have a large amount of endosperm, which is a tissue that stores food for the developing embryo. Examples of albuminous seeds include wheat, maize, castor coconut ,barley. Maize and castor are examples of seeds in which the endosperm does not completely consumed by the developing embryo. This means that the embryo has access to both the endosperm and the cotyledons as a food reserve.