Dialyceras discolor is a tree in the family Sphaerosepalaceae. It is endemic to Madagascar.
Dialyceras discolor is known only from a few locations in the northeastern region of Sava. Its habitat is humid evergreen forests from sea-level to 500m (1,600feet) altitude. None of the locations are within protected areas.
Dialyceras discolor is threatened because lemurs, and other animals, disperse the tree's seeds. Threats to these animals would in turn affect the tree's reproduction.