$A$ gamopetalous funnel-like corolla is called:

In $Gossypium$,the type of cohesion is:

Floral features are commonly used for identification of angiosperms because

Among Indigofera,Sesbania,Salvia,Allium,Aloe,mustard,groundnut,radish,gram,and turnip,how many plants have stamens of different lengths in their flowers?

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

Epigynous flowers are seen in: