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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Gentianales

Familia: Rubiaceae
Subfamilia: Ixoroideae
Tribus: Gardenieae
Genus: Hyperacanthus
Species: H. ambovombensis – H. amoenus – H. grevei – H. madagascariensis – H. mandenensis – H. microphyllus – H. perrieri – H. pervillei – H. poivrei – H. ravinensis – H. talangninia
Name

Hyperacanthus E.Mey. ex Bridson, Kew Bull. 40: 275. (1985)

Type species: Hyperacanthus amoenus (Sims) Bridson, Kew Bull. 40: 275. (1985)

References

Meyer, E.H.F. 1985. Validation of the African Genus Hyperacanthus E. Mey. (Rubiaceae Tribe Gardenieae). Kew Bulletin 40: 275. JSTOR
Govaerts, R. et al. 2020. Hyperacanthus in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 Feb. 29. Reference page.
International Plant Names Index. 2020. Hyperacanthus. Published online. Accessed: Feb. 29 2020.
Tropicos.org 2020. Hyperacanthus. Missouri Botanical Garden. Published online. Accessed: 29 Feb. 2020.
Tropicos.org: Catalogue of the Vascular Plants of Madagascar: Hyperacanthus. Missouri Botanical Garden. Published online. Accessed: 2020 Feb. 29.

Hyperacanthus is a flowering plant genus in the family Rubiaceae, occurring on Madagascar and nearby southern Africa, approximately from Mozambique to the southernmost parts of the continent.

This genus used to contain only 5 species, but the number has tripled since a number of plants formerly believed to be genip-trees – the "Genipa sensu Drake" group – were recognized to be not as closely related to genips as was previously believed. Those species are now placed in Hyperacanthus, at least provisionally:

Hyperacanthus ambovombensis Rakotonas. & A.P.Davis
Hyperacanthus amoenus (Sims) Bridson
Hyperacanthus exosolenius (formerly in Genipa, tentatively placed here)
Hyperacanthus grevei Rakotonas. & A.P.Davis
Hyperacanthus lantzianus (formerly in Genipa, tentatively placed here)
Hyperacanthus lastellianus (formerly in Genipa, tentatively placed here)
Hyperacanthus madagascariensis (Lam.) Rakotonas. & A.P.Davis (formerly in Genipa)
Hyperacanthus mandenensis Rakotonas. & A.P.Davis
Hyperacanthus microphyllus (K.Schum.) Bridson
Hyperacanthus perrieri (Drake) Rakotonas. & A.P.Davis (formerly in Genipa)
Hyperacanthus pervillei (Drake) Rakotonas. & A.P.Davis (formerly in Genipa)
Hyperacanthus poivrei (Drake) Rakotonas. & A.P.Davis (formerly in Genipa)
Hyperacanthus ravinensis (Baill. ex Drake) Rakotonas. & A.P.Davis (formerly in Genipa)
Hyperacanthus talangninia (DC.) Rakotonas. & A.P.Davis (formerly in Genipa)
Hyperacanthus tubulosus (formerly in Genipa, tentatively placed here)

References

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