Syzygium jambos. Pomosa, Rose apple, Malabar Apple
This is the last photo I have from the second Tropical area of the heated greenhouse, Palacio de Cristal de la Arganzuela, near the Rio park in Madrid.
Syzygium jambos is mentioned in
ON THE FRENCH RIVIERA by Melanie Dawe
THE MEDITERRANEAN GARDEN number 49, July 2007