Gambeya lacourtiana and Gambeya subnuda, Chrysophyllum africanum, and Chysophyllum giganteum
Gambeya lacourtiana and Gambeya subnuda, and related species Chrysophyllum africanum and Chysophyllum giganteum, all of the family Sapotaceae. The botanical name Gambeya africana also exists but it is now considered just a synonym for Chrysophyllum africanum.
I attribute the differing end grain characteristics shown in my samples as being due to the fact that there are at least two different genera involved.
my samples: NOTE: these pics were all taken in very bright incandescent lighting ("soft white" at 2700K) colors will vary under other lighting conditions
both sides of a sample plank of longhi / Chrysophyllum giganteum --- HUGE enlargements are present. This sample was loaned to me by Mark Peet whom I thank for this and other contributions to the site.