Exaceae is a flowering plant tribe in the family Gentianaceae.[1]
Exaceae comprises about 180 species assigned to eight monophyletic
genera,[2] with major centres of endemism in
continental Africa (about 78 endemic species and two endemic
genera), Madagascar (55 endemic species and four endemic
genera) and the southern tip of India and Sri Lanka
(14 endemic species).[3]
^Kissling, Jonathan; Yuan, Yong-Ming; Küpfer, Philippe; Mansion, Guilhem (2009). "The polyphyletic genus Sebaea (Gentianaceae): A step forward in understanding the morphological and karyological evolution of the Exaceae". Molecular Phylogenetics and Evolution. 53 (3): 734–748. doi:10.1016/j.ympev.2009.07.025. PMID19646540.