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
edit- 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
References
edit- ^ Kissling, Jonathan (2012). "Taxonomy of Exochaenium and Lagenias: Two Resurrected Genera of Tribe Exaceae (Gentianaceae)". Systematic Botany. 37 (1): 238–253. doi:10.1600/036364412X616800.
- ^ a b Kissling, Jonathan (2015). "Exochaenium clavatum subsp. stella-palustre (Gentianaceae—Exaceae), a new subspecies from Zambia". Phytotaxa. 203 (3): 297–300. doi:10.11646/phytotaxa.203.3.10.
- ^ 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. PMID 19646540.
- ^ Kissling, Jonathan; Barrett, Spencer C. H. (2013). "Variation and evolution of herkogamy in Exochaenium (Gentianaceae): implications for the evolution of distyly". Annals of Botany. 112 (1): 95–102. doi:10.1093/aob/mct097. PMC 3690988. PMID 23639954.
- ^ Kissling, Jonathan; Grieve, Kate W.; Grieve, Graham; Bytebier, Benny (2023). "Exochaenium natalense (Gentianaceae), a reinstated taxon endemic to KwaZulu- Natal, South Africa". Phytotaxa. 619: 117–122. doi:10.11646/phytotaxa.619.1.8.