To tell when it is ripe to pick, you scratch the base of the fruit and they should be going brown but if they’re still green then leave them alone. There are 2 varieties Pontin and Gray. There’s also the Magana which is a big one and it has a courser flavour – they’re great in milk shakes and this variety has a pointy end. The round one is Pontin. In Spanish it’s the Mother. Ref: Bob Brinsmead – Tropical Fruit World.