A friend from Campeche México introduced me to this Species that is little beat similar to the Guayas I have been selling in the past years, however there are some very pronounced differences, instead of fruiting in May like Guayas, Koloc fruits in November when vey few fruits are available, the fruit when very ripe falls and at this stage flesh is stone free flavor is sweet when ripe or sweet and tangy just before well ripe,about size they are well larger than other fruit of its kind as he told me this tree is becoming endangered as some land is getting cleared
This is the conversation I had with him in Spanish and then translated using Google translator :
los frutos son mas grandes que las huayas, desde el tamaño de una pelota de golf a una de fronton, no son acidas, mas bien dulces, de un sabor agradable y unico, no es muy jugosa, aunque algunas si lo son, hay ue calcularle bien el punto de maduracion, lo ideal es cuando cae la fruta por si sola, algunas que son cortadas sazonas son agridulces y la pulpa esta aun pegada a la semilla, la de la foto es una en su punto, incluso no se si notas que la semilla esta mas pequeña
the fruits are larger than the huayas, from the size of a golf ball to a fronton, they are not acidic, rather sweet, of a pleasant and unique flavor, it is not very juicy, although some if they are, there is calculate the ripeness point well, the ideal is when the fruit falls by itself, some that are cut seasonings are sweet Tart and the pulp is still attached to the seed, the one in the photo is one at its point, I don't even know if you notice that the seed is smaller
Today I found the scientific name is Talisia Floresii and in Campeche and some Mayan areas of Guatemala is known as Koloc or Coloc
https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.maya-ethnobotany.org/edible-fruits-of-mayan-world-agroforestry/talisia-floresii-fruit-tree-underutilized-mayan-food-plant.php&ved=2ahUKEwiApZuM2_vlAhUL5awKHdozAOcQFjAAegQIAxAB&usg=AOvVaw0kkErV_CnoMYSrcx_EtUJd