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Isertia

{{Short description|Genus of shrubs}}

{{automatic taxobox

|image = Isertia haenkeana (29288841552).jpg

|image_caption = Isertia haenkeana

|display_parents = 2

|taxon = Isertia

|authority = Schreb.

|type_species = Isertia coccinea

|type_species_authority = (Aubl.) J.F.Gmel.

|synonyms =

}}

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.{{cite web|url=http://apps.kew.org/wcsp/qsearch.do?plantName=Isertia|title=Isertia in the World Checklist of Rubiaceae|accessdate=19 April 2017}} A few are cultivated as ornamentals.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}}

Systematics

Isertia was named by Johann von Schreber in 1789.{{cite book|author=Schreber J|year=1789|title=Genera Plantarum Eorumque Characteres Naturales Secundum Numerum, Figuram, Situm, & Proportionem Omnium Fructificationis Partium|edition=8|volume=1|page=234|location=Frankfurt am Main, Germany}} The generic name honors the German botanist and explorer Paul Erdmann Isert.{{cite book|author=Quattrocchi U|year=2000|title=CRC World Dictionary of Plant Names|volume=1|publisher=CRC Press|location=Boca Raton, New York, Washington DC, London|isbn=978-0-8493-2675-2}}

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.{{cite journal|author=Boom BM|year=1984|title=A revision of Isertia (Isertieae: Rubiaceae)|journal=Brittonia|volume=36|issue=4|pages=425–454|doi=10.2307/2806603|jstor=2806603|bibcode=1984Britt..36..425B |s2cid=56226559}}

Molecular phylogenetic studies have shown that Isertia is most closely related to Kerianthera, a monospecific genus from Amazonian Brazil.{{cite journal|author=Manns U, Bremer B|year=2010|title=Towards a better understanding of intertribal relationships and stable tribal delimitations within Cinchonoideae s.s. (Rubiaceae)|journal=Molecular Phylogenetics and Evolution|volume=56|issue=1|pages=21–39|doi=10.1016/j.ympev.2010.04.002|pmid=20382247}}

Species

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References

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Category:Rubiaceae genera

Category:Taxa named by Aimé Bonpland