The technical term used for the gynoecium in a Hibiscus flower is ..........

Basal placentation is found in

The ovary is half-inferior in the flowers of . . . . . . .

Free-central placentation is found in

Read the following statements.
$(i)$ Gynoecium is situated in the centre and other parts of the flower are located on the rim of the thalamus almost at the same level.
$(ii)$ Ovary is half-inferior.
$(iii)$ Examples are plum,rose and peach.
Which condition of flowers is being described by the above statements?

In which of the following series is the thalamus of the flower disc-shaped?