Guibourtia
Seed, cotyledon, embryo, and testa:
G. coleosperma (G. Bentham) J.J.G. Léonard - bottom far left seed topography without aril, top left center seed topography with aril, top far left cotyledon split and concealing radicle (L) and embryonic axis (R), bottom left center seeds, testa SEMs.