The round head of gynoecium is called stigma.

Basal placentation is seen in helianthus.

Ovule originates from placenta.

The point of attachment of the body of ovule to funicle is known as hilum.

The funicle is a slender multicellular structure.

Micropyle is the opening at the apex of ovule through which pollen grains enter the nucellus.

The basal portion of ovule just below the junction of the nucellus and integuments is called chalaza.

A placentation that consists of a single compartment without septa and ovules attached to a central column that arises directly from the floral apex is called free central placentation.

Parenchyma are living cells that have functions and constitute the nucellus.

Egg apparatus is present at the micropylar end.

Egg apparatus consist of a large central egg cell and two lateral small synergids.

There are 7 cells in an embryo sac.

Megaspore mother cell produces 4 cells after meiotic division.

In orthotropous ovule, the funicle, chalaza and micropyle lie in a vertical line.

This type of ovule is present in family Leguminoseae.