Exochaenium

The genus Exochaenium (23 species) is endemic to sub-Saharan Africa, with species occurring in most tropical and sub-tropical regions of the continent, particularly on the Katanga plateau (Angola, Democratic Republic of Congo and Zambia), with many extending to the Sudano-Zambesian and Guineo-Congolian regions.^[1][2] The genus is monophyletic^[3] and is used to study the variation and evolution of herkogamy.^[4]

Exochaenium
Exochaenium grande
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Gentianales
Family:	Gentianaceae
Tribe:	Exaceae
Genus:	Exochaenium Griseb.
Type species
Exochaenium grande (E.Mey.) Griseb.
Species
See species list below.

Species

• Exochaenium alatum (Paiva and Nogueira) Kissling
• Exochaenium baumianum (Gilg) Schinz
• Exochaenium caudatum (Paiva and Nogueira) Kissling
• Exochaenium clavatum (Paiva and Nogueira) Kissling^[2]
• Exochaenium debile Welw.
• Exochaenium dimidiatum (Sileshi) Kissling
• Exochaenium exiguum A.W.Hill
• Exochaenium fernandesianum (Paiva and Nogueira) Kissling
• Exochaenium gracile (Welw.) Schinz
• Exochaenium grande (E.Mey.) Griseb.
• Exochaenium hockii (De Wild.) Kissling
• Exochaenium lineariforme (Sileshi) Kissling
• Exochaenium macropterum (Sileshi) Kissling
• Exochaenium natalense (Schinz) Kissling and K.W.Grieve^[5]
• Exochaenium oliganthum (Gilg) Kissling
• Exochaenium perparvum (Sileshi) Kissling
• Exochaenium platypterum (Baker) Schinz
• Exochaenium primulaeflorum Welw.
• Exochaenium pumilum (Baker) Hill
• Exochaenium pygmaeum Milne-Redhead
• Exochaenium rotundifolium (Peter) Kissling
• Exochaenium teucszii (Schinz) Schinz
• Exochaenium wildemanianum (Boutique) Kissling