Looks like Pittosporum tobira. http://images.google.com/imgres?img...n-gb:IE-SearchBox&rlz=1I7SUNA_en-GB&sa=N&um=1 http://3.bp.blogspot.com/_oH7YVmRWh...wood+-+pittosporum+tobira+seed+pods+green.JPG
Don't remember seeing the fully opened fruits before. Although not fully hardy plant is frequent at local outlets, have seen unopened capsules in a planting here.