An apocarpous flower is found in
Caesalpinnia
Ranunculus
Brassica
Datura
Gynostegium $(Fusion\,\, of\,\, anthers\,\, with\,\, stigma)$ and pollinia are present in family
White spongy floating roots occur in
In Rafflesia, seeds are dispersed by
Cruciform corolla is found in