Cinchona officinalis belongs to family
Cruciferae
Malvaceae
Rubiaceae
Leguminosae
When the filaments are attached to the carpels throughout their whole length or by their anthers only, the condition is called
Free central placentation is found in
When leaves fall individually at different times it is called
Which of the following pairs of family's posses pollinia?
Arrangement of sepals and petals in the bud condition is called :