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Isertia

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Isertia
Isertia haenkeana
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Rubiaceae
Subfamily: Cinchonoideae
Tribe: Isertieae
Genus: Isertia
Schreb.
Type species
Isertia coccinea
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.[1] A few are cultivated as ornamentals.[2]

Systematics

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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

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References

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  1. ^ "Isertia in the World Checklist of Rubiaceae". Retrieved 19 April 2017.
  2. ^ 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
  3. ^ Schreber J (1789). Genera Plantarum Eorumque Characteres Naturales Secundum Numerum, Figuram, Situm, & Proportionem Omnium Fructificationis Partium. Vol. 1 (8 ed.). Frankfurt am Main, Germany. p. 234.
  4. ^ Quattrocchi U (2000). CRC World Dictionary of Plant Names. Vol. 1. Boca Raton, New York, Washington DC, London: CRC Press. ISBN 978-0-8493-2675-2.
  5. ^ Boom BM (1984). "A revision of Isertia (Isertieae: Rubiaceae)". Brittonia. 36 (4): 425–454. Bibcode:1984Britt..36..425B. doi:10.2307/2806603. JSTOR 2806603. S2CID 56226559.
  6. ^ 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.