Isertia

Classification System: APG IV

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

Familia: Rubiaceae
Subfamilia: Cinchonoideae
Tribus: Isertieae
Genus: Isertia
Species: I. coccinea – I. haenkeana – I. hypoleuca – I. krausei – I. laevis – I. longifolia – I. parviflora – I. pittieri – I. psammophila – I. reticulata – I. rosea – I. scorpioides – I. spiciformis – I. verrucosa – I. wilhelminensis
Name

Isertia Schreb., Gen. Pl., ed. 8[a], 1: 234 (1789).

Type species: Isertia coccinea (Aubl.) J.F.Gmel., Syst. Nat. ed. 13[bis]: 567 (1791).

Synonyms

Heterotypic
Cassupa Bonpl. in F.W.H.A.von Humboldt & A.J.A.Bonpland, Pl. Aequinoct. 1: 43 (1808).
Phosanthus Raf., Ann. Gén. Sci. Phys. 6: 82 (1820).
Brignolia DC., Prodr. 4: 444 (1830).
Bruinsmania Miq., Linnaea 17: 72 (1843).
Creatantha Standl., Publ. Field Columb. Mus., Bot. Ser. 8: 344 (1931).
Yutajea Steyerm., Ann. Missouri Bot. Gard. 74: 676 (1987).

References
Primary references

Schreber, J.C.D. von 1789. Genera Plantarum 1: 234, n. 602.

Links

Govaerts, R. et al. 2019. Isertia in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2019 Mar. 15. Reference page.
International Plant Names Index. 2019. Isertia. Published online. Accessed: Mar. 15 2019.
Tropicos.org 2019. Isertia. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Mar. 15.
Tropicos.org: Rubiaceae: Isertia. Missouri Botanical Garden. Published on the internet. Accessed: 2019 Mar. 15.

Isertia is a genus of flowering plants in the family Rubiaceae. It contains 15 species of shrubs or small trees that are indigenous to the neotropics.[1] A few are cultivated as ornamentals.[2]
Systematics

Isertia was named by Johann von Schreber in 1789.[3] The generic name honors the German botanist and explorer Paul Erdmann Isert.[4]

Isertia is divided into two sections: section Cassupa and section Isertia. In section Cassupa, the fruit is a berry and the ovary usually has two or three locules. In section Isertia, the fruit is a pyrene and the ovary usually has five or six locules.[5]

Molecular phylogenetic studies have shown that Isertia is most closely related to Kerianthera, a monospecific genus from Amazonian Brazil.[6]
Species

Isertia coccinea (Aubl.) J.F.Gmel.
Isertia haenkeana DC.
Isertia hypoleuca Benth.
Isertia krausei Standl.
Isertia laevis (Triana) B.M.Boom
Isertia longifolia (Hoffmanns. ex Schult.) K.Schum.
Isertia parviflora Vahl
Isertia pittieri (Standl.) Standl.
Isertia psammophila N.Dávila
Isertia reticulata Britton ex Rusby
Isertia rosea Spruce ex K.Schum.
Isertia scorpioides B.M.Boom
Isertia spiciformis DC.
Isertia verrucosa (Humb. & Bonpl.) Standl.
Isertia wilhelminensis Steyerm.

References

"Isertia in the World Checklist of Rubiaceae". Retrieved 19 April 2017.
Huxley AJ, Griffiths M, Levy M, editors. 1992. The New Royal Horticultural Society Dictionary of Gardening. The Macmillan Press Limited, London; The Stockton Press, New York. ISBN 978-0-333-47494-5
Schreber J (1789). Genera Plantarum Eorumque Characteres Naturales Secundum Numerum, Figuram, Situm, & Proportionem Omnium Fructificationis Partium. 1 (8 ed.). Frankfurt am Main, Germany. p. 234.
Quattrocchi U (2000). CRC World Dictionary of Plant Names. 1. Boca Raton, New York, Washington DC, London: CRC Press. ISBN 978-0-8493-2675-2.
Boom BM (1984). "A revision of Isertia (Isertieae: Rubiaceae)". Brittonia. 36 (4): 425–454. doi:10.2307/2806603. JSTOR 2806603. S2CID 56226559.
Manns U, Bremer B (2010). "Towards a better understanding of intertribal relationships and stable tribal delimitations within Cinchonoideae s.s. (Rubiaceae)". Molecular Phylogenetics and Evolution. 56 (1): 21–39. doi:10.1016/j.ympev.2010.04.002. PMID 20382247.