Which one of the following is a monocarpic tree?
Borassusflabellifer
Coryphaumbraculifera
Phoenix dactylifera
Elaeisguineensis
Amentum $(Catkin)$ inflorescence is found
In which of the following the seed germinates and still attached with the main plant
Opening of flowers in the cymose inflorescence is
Arrangement of floral members which are partily spiral and partily in whorl is