Areca sp "Warbo" this species is from PNG it has one of the largest seeds of all the Areca's if not the largest, the photo above is of one of the smaller fruits/seeds.

Immature fruit/seed, note the lovely broad leave on this species and quite thin trunk.

Photo above of seed with fruit removed to give size of actual seed.

Once again photo showing leaf form of this species , makes a great landscaping species.

Areca sp Warbo seed.