subtropical South Pacific palms??

[Bennz]

Having an obvious South Pacific bias, I am curious if there is anything I am missing.  To the best of my knowledge, there are 6 temperate latitude (ie lat. 30-45S) palm species in the South Pacific, being Juania australis, Rhopalostylis sapida, and the 4 Lord Howe Island species. But in the subtropical latitudes I only know of one species with two forms, Rhopalostylis baueri on Norfolk Island and R. cheesemanii on Raoul. Clearly there was another species on Easter Island Paschalococos, now extinct.

Are there any other palm species on the scattered subtropical South Pacific Islands? The four islands in the Pitcairn Island group seem likely candidates, or how about Rapa with its 633m mountain? Any native palms on Marotiri, or Isla Sala Y Gomez? What about Isla San Ambrosio and Isla San Felix? I'm pretty vague on these Islands, I know there are cocos palms on many of them, especially Pitcairn. Anyone knowledgeable on these Islands? I'm also interested in any endemic banyan-form Ficus, btw.