DENDROLOGY

Detailed explanation-1: -The type of placentation where the ovules are attached to the base of the ovary is called basal placentation. Plants like marigold and sunflower shows basal placentation.

Detailed explanation-2: -In the case of basal placentation, as the name suggests, the ovules are attached to the base of the ovary. Basal placentation takes place in marigold, sunflower etc.

Detailed explanation-3: -Definitions of basal placentation. where one or few ovules develop at the base of a simple or compound ovary. type of: placentation. arrangement of the ovules in the placenta and of the placentas in the ovary.