Exochaenium

The genus Exochaenium (22 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
  • 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 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
  1. Kissling, Jonathan. "Taxonomy of Exochaenium and Lagenias: Two Resurrected Genera of Tribe Exaceae (Gentianaceae)". Systematic Botany. 37 (1): 238–253. doi:10.1600/036364412X616800.
  2. 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.
  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. PMID 19646540.
  4. Kissling, Jonathan (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.
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