Read the following description of a gynoecium: "The ovules develop on the inner wall of the ovary or on peripheral part. The ovary is one-chambered but it becomes two-chambered due to the formation of a false septum." Which of the following represents a correct combination of a plant exhibiting this condition and its corresponding placentation type?

Step-by-step solution

The given description corresponds to parietal placentation. In parietal placentation, the ovules develop on the inner wall of the ovary or on the peripheral part. The ovary is initially one-chambered, but it becomes two-chambered due to the formation of a false septum (replum). According to NCERT, examples of parietal placentation are mustard and Argemone. Tomato exhibits axile placentation (multilocular ovary with axial placenta). Dianthus exhibits free central placentation (ovules on central axis, septa absent).