What is meant by perisperm?

Nucellus:

1. It is a part of the plant ovule.
2. The nucellus is a cluster of cells found within the integuments (protective envelope of ovule).
3. The nucellus has an abundance of reserve food resources.
4. The embryo sac, also known as the female gametophyte, is found in the nucellus.

Perisperm:

1. Nucellus remnants can also be found in some seeds.
2. The perisperm is the nucellus that remains after fertilization.
3. Example - black pepper and beet