Xanthocyparis vietnamensis

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Xanthocyparis vietnamensis
Xanthocyparis vietnamensis.jpg
Scientific classification
Kingdom: Plantae
Division: Pinophyta
Class: Pinopsida
Order: Pinales
Family: Cupressaceae
Genus: Xanthocyparis
Species: X. vietnamensis
Binomial name
Xanthocyparis vietnamensis
Farjon & Hiep

Xanthocyparis vietnamensis, commonly known as the Vietnamese golden cypress, is a coniferous tree in the cypress family.

Distribution[edit]

Xanthocyparis vietnamensis is endemic to Vietnam, being native only to the karst limestone mountains of the Hà Giang Province in northern Vietnam.[2]

Taxonomy[edit]

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[edit]

Xanthocyparis vietnamensis is designated as a Endangered[7] species, as only 560 individuals are known to exist, on only 10 km2 of habitat.[2]

References[edit]

  1. ^ Thomas, P. (2013). "Xanthocyparis vietnamensis". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved May 19, 2014. 
  2. ^ a b Thompson, Christian (2008-12-15). "First Contact in the Greater Mekong" (pdf). World Wildlife Fund. Retrieved 2008-12-20. 
  3. ^ 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. JSTOR 3392953. 
  4. ^ 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. 
  5. ^ Robert R. Mill & Aljas Farjon (2006). "Proposal to conserve the name Xanthocyparis against Callitropsis Oerst. (Cupressaceae)". Taxon. 55 (1): 229–231. JSTOR 25065550. 
  6. ^ Fred R. Barrie (2011). "Report of the General Committee: 11". Taxon. 60 (4): 1211–1214. 
  7. ^ http://globaltrees.org/threatened-trees/trees/vietnamese-golden-cypress/

Further reading[edit]