Biology:Xanthocyparis vietnamensis
| Xanthocyparis vietnamensis | |
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| Species: | X. vietnamensis
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| Xanthocyparis vietnamensis Farjon & Hiep
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Xanthocyparis vietnamensis, commonly known as the Vietnamese golden cypress, is a coniferous tree in the cypress family.
Distribution
Xanthocyparis vietnamensis is endemic to Vietnam, being native only to the karst limestone mountains of the Hà Giang Province in northern Vietnam.[2]
Taxonomy
It was first discovered by western scientists only in October 1999 and was shortly thereafter described as a new genus and species, namely Xanthocyparis vietnamensis, closely related to Nootka cypress (Xanthocyparis nootkatensis), which was also transferred to this new genus.[3] Subsequently, Little et al. (2004) pointed out that an earlier genus name Callitropsis had been given to Nootka cypress,[4] but this name was later abandoned in favour of Xanthocyparis.[5][6]
Conservation
Xanthocyparis vietnamensis is designated as an Endangered[7] species, as only 560 individuals are known to exist, on only 10 km2 of habitat.[2]
References
- ↑ Thomas, P. (2013). "Xanthocyparis vietnamensis". IUCN Red List of Threatened Species 2013: e.T44028A2991576. doi:10.2305/IUCN.UK.2013-1.RLTS.T44028A2991576.en. https://www.iucnredlist.org/species/44028/2991576.
- ↑ 2.0 2.1 Thompson, Christian (2008-12-15). "First Contact in the Greater Mekong". World Wildlife Fund. http://www.worldwildlife.org/who/media/press/2008/WWFBinaryitem10994.pdf.
- ↑ A. Farjon; Nguyen Tien Hiep; D. K. Harder; Phan Ke Loc; L. Averyanov (2002). "A new genus and species in the Cupressaceae (Coniferales) from northern Vietnam, Xanthocyparis vietnamensis". Novon 12 (2): 179–189. doi:10.2307/3392953.
- ↑ Damon P. Little; Andrea E. Schwarzbach; Robert P. Adams; Chang-Fu Hsieh (2004). "The circumscription and phylogenetic relationships of Callitropsis and the newly described genus Xanthocyparis (Cupressaceae)". American Journal of Botany 91 (11): 1872–1881. doi:10.3732/ajb.91.11.1872. PMID 21652334. http://www.amjbot.org/cgi/reprint/91/11/1872.
- ↑ Robert R. Mill; Aljas Farjon (2006). "Proposal to conserve the name Xanthocyparis against Callitropsis Oerst. (Cupressaceae)". Taxon 55 (1): 229–231. doi:10.2307/25065550.
- ↑ Fred R. Barrie (2011). "Report of the General Committee: 11". Taxon 60 (4): 1211–1214. doi:10.1002/tax.604026.
- ↑ http://globaltrees.org/threatened-trees/trees/vietnamese-golden-cypress/
Further reading
- Luu, Nguyen Duc To; Thomas, Philip Ian (2004). Conifers of Vietnam. ISBN 1-872291-64-3. http://www.ceh.ac.uk/sections/bm/conifer_manual.html.
Wikidata ☰ Q17165388 entry
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