I call it "sapote culebra" to distinguish it. Pouteria domingensis has a rich history in the Caribbean & Florida.
This Sapotaceae at one time was considered native to Florida, now considered naturalized, but still rare.
Have 1 tree in the ground, from Cuban seeds. I ate the fruit from what I think was called Totuma, but they were a tad overripe.
I know of very few trees in Florida.
I believe what I have planted is
Pouteria dominguensis subsp. Dominguensis (round leaves)
The "Totuma" I observed and tasted has pointy leaves. I have 2 seedlings from that tree.
Digigarden I am interested in any info about subsp. Cuprea to review whatever you found.
Aside from this link -
http://cedaf.org.do/arboles_dominicanos/index_ncomun.php?comun=TotumaGood info about using the Kew list to help with names.