In ______ placentation, the placenta forms a ridge along the ventral suture of the ovary.
Axile
Basal
Free central
Marginal
Delete the odd one :
Placentation found in china rose and tomato.
Identify $X, Y, Z$ from the figure.
$X - Y - Z$
Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicum, sweet pea, Petunia, Indigofera, mustard, soybean, tobacco and groundnut, how many plants have corolla with valvate aestivation?
Carpels are fused in . . . ....