Hi, today is an exiting day for me!
This is NOT psidium guineense, nor psidium cattleianum,it is rare.
I went to my backyard to watch the trees and walked directly to my unknow psidium spp. (maybe p. guyanense), touch the fruit, saw it was getting yellow but it was soft to the touch (maybe just ripe or maybe the worms were doing their job...), so I moved it a bit and it fell down.
Sweet and acid, 12º Brix, the gelatinous pulp sticks to the seeds just as strawberry guava, similar taste to this one, and the leaves of the plant are similar too.
If you never tasted strawberry guava and you cant compare/imagine the flavour, I would say it tastes like guava+tomato or you can compare it to a pear, very similar experience.
It reminded me the white asian guava I tasted one year ago, it was the best I had, but this one is more acid, making it very good for juices, icecreams and mermelades.
It had just 2 fruit fly worms inside
, but that means that the fruit would be tastier and sweeter without worms that dont allow it to ripe just fine. It was not too much damaged. Seeds are bigger than tropical guavas and strawberry guavas I know, 4mm to 5mm diameter.
So, I think this is a very good species, it grows very fast and bears in 3 years, 1m tall. I really dont know about its frost resistance, but here at my backyard It had no problems at -1ºC.