Tarrietia utilis (synonyms Heritiera utilis and Triplochiton utils) of the family Sterculiaceae --- this species is in Ghana, Ivory Coast, Liberia, West Africa
Heritiera densiflora --- this species is in Cameroon and Gabon
Cola proteiformis --- this species is in Ivory Coast
Except as specifically noted, I have no idea which of those species are shown on this page
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 niangon / Heritiera utilis (which is a synonym for tarrietia utilis) --- HUGE enlargements are present. This sample was loaned to me by Mark Peet whom I thank for this and other contributions to the site.
both sides of a sample plank of niangon --- species is unknown, except that it is NOT Tarrietia utilis and probably not Heritiera densiflora either --- HUGE enlargements are present. Both of these two pics are a bit too deep a red color but I could not get the color correction to come out quite right. The second side is freshly sanded and is actually noticibly lighter than the first side (which has a bit of an age patina)
end grain and end grain closeup of the piece directly above