Guettarda is a plant genus in the family Rubiaceae. Most of these plants are known by the common name velvetseed.
Distribution
Most of the species are Neotropical.[1] Twenty are found in New Caledonia and one reaches Australia.[2] A few others are found on islands and in coastal areas of the Indian and Pacific Oceans. It is a tree of coastal habitats, up to 18 m (59 ft) in height.
Taxonomy
Three species (G. odorata, G. scabra, G. speciosa) are known in cultivation.[3] Guettarda argentea provides edible fruit.[1] The type species for the genus is Guettarda speciosa.[4]
Guettarda was named by Linnaeus in 1753 in his book Species Plantarum.[5][6] This generic name is in honour of the 18th century French naturalist Jean-Étienne Guettard.[7]
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.[8]
Species
Estimates of the number of species range from about 50 [3] to 162.[9] The following species list may be incomplete or contain synonyms.
References
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^ a b David J. Mabberley. 2008. Mabberley's Plant-Book third edition (2008). Cambridge University Press: UK. ISBN 978-0-521-82071-4
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^ 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.
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^ a b 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)
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^ Guettarda In: Index Nominum Genericorum. In: Regnum Vegetabile (see External links below).
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^ Guettarda in International Plant Names Index. (see External links below).
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^ Carl Linnaeus. 1753. Species Plantarum (Species plantarum : exhibentes plantas rite cognitas ad genera relatas, cum differentiis 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).
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^ 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).
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^ 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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^ Guettarda At: World Checklist of Rubiaceae At: Kew Gardens Website. (see External links below).
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^ Timyan, J. (2021). "Guettarda angustata". IUCN Red List of Threatened Species. 2021: e.T121947222A121986360. doi:10.2305/IUCN.UK.2021-1.RLTS.T121947222A121986360.en. Retrieved 16 November 2021.
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^ Timyan, J. (2021). "Guettarda cahosiana". IUCN Red List of Threatened Species. 2021: e.T121947309A121986375. doi:10.2305/IUCN.UK.2021-1.RLTS.T121947309A121986375.en. Retrieved 16 November 2021.
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^ Gonzalez-Oliva, L. (2020). "Guettarda retusa". IUCN Red List of Threatened Species. 2020: e.T38848A149816916. doi:10.2305/IUCN.UK.2020-3.RLTS.T38848A149816916.en. Retrieved 14 November 2021.
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^ Timyan, J. (2021). "Guettarda tortuensis". IUCN Red List of Threatened Species. 2021: e.T121947426A121986450. doi:10.2305/IUCN.UK.2021-1.RLTS.T121947426A121986450.fr. Retrieved 16 November 2021.
Guettarda retusa C. Wright – Cuban guettarda tree – extinct (1869)[12]
