The angiosperm to which the largest flower belongs is a:

Identify the type of flowers based on the position of calyx,corolla and androecium with respect to the ovary from the given figures $(a)$ and $(b)$.

Match the following columns regarding placentation in plants:

Column-$I$ (Placentation)	Column-$II$ (Examples)
$P$. Parietal	$I$. Dianthus,Primrose
$Q$. Axile	$II$. Sunflower,Marigold
$R$. Marginal	$III$. Pea
$S$. Free central	$IV$. Lemon,China rose,Tomato
$T$. Basal	$V$. Mustard,Argemone

How can the corolla of the given flower be represented?

What is placentation? Describe the types of placentation.

The names $Papilionatae$ and $Cruciferae$ are based on: