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.
The genus is
monophyletic
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria:
# the grouping contains its own most recent co ...
and is used to study the variation and evolution of
herkogamy
Herkogamy (or hercogamy) is the spatial separation of the anthers and stigma in hermaphroditic angiosperms. It is a common strategy for reducing self-fertilization.
Common forms
*Approach herkogamy - (called "pin flowers") is displayed when the ...
.
Species
* ''
Exochaenium alatum''
(Paiva and Nogueira) Kissling
* ''
Exochaenium baumianum''
(Gilg) Schinz
* ''
Exochaenium caudatum''
(Paiva and Nogueira) Kissling
* ''
Exochaenium clavatum
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), wit ...
''
(Paiva and Nogueira) Kissling
* ''
Exochaenium debile''
Welw.
* ''
Exochaenium dimidiatum''
(Sileshi) Kissling
* ''
Exochaenium exiguum''
A.W.Hill
* ''
Exochaenium fernandesianum
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), wit ...
''
(Paiva and Nogueira) Kissling
* ''
Exochaenium gracile''
(Welw.) Schinz
* ''
Exochaenium grande''
(E.Mey.) Griseb.
* ''
Exochaenium hockii''
(De Wild.) Kissling
* ''
Exochaenium lineariforme''
(Sileshi) Kissling
* ''
Exochaenium macropterum
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), wit ...
''
(Sileshi) Kissling
* ''
Exochaenium natalense''
(Schinz) Kissling and K.W.Grieve
* ''
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
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), wit ...
''
(Peter) Kissling
* ''
Exochaenium teucszii
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), wit ...
''
(Schinz) Schinz
* ''
Exochaenium wildemanianum
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), wit ...
''
(Boutique) Kissling
References
{{Taxonbar, from=Q18171581
Gentianaceae genera
Gentianaceae
Taxa named by August Grisebach