Axile placentation is observed in
Mustard, Cucumber and Primrose
China rose, Beans and Lupin
Tomato, Dianthus and Pea
China rose, Petunia and Lemon
The correct option is Option 4) China rose, Petunia, and Lemon.
Axile placentation is a type of arrangement of ovules within the ovary of a flower. In axile placentation, the ovules are attached to the central axis or the walls of a compound ovary. The ovary is divided into multiple chambers, and each chamber contains one or more ovules.
Among the given options, China rose (Hibiscus rosa-sinensis), Petunia (Petunia spp.), and Lemon (Citrus limon) exhibit axile placentation. In these plants, the ovary is composed of several chambers, and the ovules are attached to the central axis or the walls of the ovary chambers.
Mustard, Cucumber, Primrose, China rose, Beans, Lupin, Tomato, Dianthus, and Pea mentioned in the other options may exhibit different types of placentation, but not specifically axile placentation.
Therefore, Option 4) China rose, Petunia, and Lemon is the correct option for plants that exhibit axile placentation.