Guettarda

Guettarda is a plant genus in the family Rubiaceae. Most of these plants are known by the common name Velvetseed. Estimates of the number of species range from about 50 [1] to 162.[2] Most of the species are neotropical.[3] Twenty are found in New Caledonia and one reaches Australia.[4] A few others are found on islands and in coastal areas of the Indian and Pacific Oceans.

Guettarda
Guettarda speciosa
Scientific classification
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Guettarda

Type species
Guettarda speciosa
L.
Species

~150 species. See text.

Three species (G. odorata, G. scabra, G. speciosa) are known in cultivation.[1] Guettarda argentea provides edible fruit.[3] The type species for the genus is Guettarda speciosa.[5] It is a tree of coastal habitats, up to 18 m (59 ft) in height. It is grown as an ornamental.

Guettarda was named by Linnaeus in 1753 in his book Species Plantarum.[6][7] This generic name is in honour of the 18th century French naturalist Jean-Étienne Guettard.[8]

The genus Guettarda is much in need of revision. Molecular phylogenetic studies have found it to be several times polyphyletic with some of its clades paraphyletic over small genera.[9]

Species

The following species list may be incomplete or contain synonyms.

References

  1. Anthony J. Huxley, Mark Griffiths, and Margot Levy (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 (set)
  2. Guettarda At: World Checklist of Rubiaceae At: Kew Gardens Website. (see External links below).
  3. David J. Mabberley. 2008. Mabberley's Plant-Book third edition (2008). Cambridge University Press: UK. ISBN 978-0-521-82071-4
  4. W. Rodger Elliot; David L. Jones; Trevor L. Blake (1990). Encyclopaedia of Australian Plants Suitable for Cultivation: Vol. 5. Port Melbourne: Lothian Press. p. 162. ISBN 0-85091-285-7.
  5. Guettarda In: Index Nominum Genericorum. In: Regnum Vegetabile (see External links below).
  6. Guettarda in International Plant Names Index. (see External links below).
  7. Carl Linnaeus. 1753. Species Plantarum (Species plantarum : exhibentes plantas rite cognitas ad genera relatas, cum diferentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas / Caroli Linnæe.): 2:991. Holmiae: Impensis Laurentii Salvii: Stockholm, Sweden. (see External links below).
  8. Umberto Quattrocchi. 2000. CRC World Dictionary of Plant Names volume II. CRC Press: Boca Raton; New York; Washington,DC;, USA. London, UK. ISBN 978-0-8493-2676-9. (vol. II).
  9. Ulrika Manns and Birgitta Bremer. 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
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