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It's a Tilia species (linden tree / basswood tree), e.g.
http://uweb.und.nodak.edu/~Julie.A.Fleck...
This is a Callistemon species (not Metrosideros). It is probably either Callistemon citrinus or Callistemon viminalis.
Probably Aechmea blanchetiana (a Bromeliad) -- Nice contrast of colors and texture.
Delonix has different shaped petals and the pods are woody, more than 1 foot long. Your pods are clearly Caesalpinia.
It's a Greyia species, probably either G. sutherlandii or G. radlkoferi, depending on whether the leaf undersides were wooly (G. radkoferi).
A Tibouchina species, possible T. urvilleana.
It's a Brunfelsia species, mabe B. pauciflora or B. grandiflora.
Indigofera species, probably Indigofera suffruticosa
http://toptropicals.com/cgi-bin/garden_c...
It's a Medinilla species, possibly Medinilla magnifica.