Which type of placentation is characterized by the ovules developing on the inner wall of the ovary or on the peripheral part, as seen in mustard and argemone?

Correct option is A

The correct answer is (a) Parietal.
• In parietal placentation, ovules develop on the inner walls of the ovary or on peripheral parts, found in mustard and argemone.
• The ovary is unilocular but may appear bilocular due to false septa formation.
Information Booster:
• Axile placentation: Found in China rose and tomato.
• Basal placentation: Found in sunflower and marigold.
• Free central placentation: Found in dianthus and primrose.
• Placentation refers to the arrangement of ovules within the ovary.
• It is a key feature for plant classification and identification.
Additional Knowledge:
• The study of placentation falls under floral morphology in botany.
• Mustard belongs to the Brassicaceae family.
• Argemone is a poppy family (Papaveraceae) plant.
• The type of placentation affects fruit structure and seed arrangement.