Widdringtonia wallichii: Difference between revisions
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'''''Widdringtonia wallichii''''', '''Clanwilliam cedar''' or '''Clanwilliam cypress''', previously '''''Widdringtonia cedarbergensis'''''<ref>{{cite web|url=http://www.plantzafrica.com/plantwxyz/widcedar.htm |title=Widdringtonia cedarbergensis |publisher= |
'''''Widdringtonia wallichii''''', '''Clanwilliam cedar''' or '''Clanwilliam cypress''', previously '''''Widdringtonia cedarbergensis'''''<ref>{{cite web|url=http://www.plantzafrica.com/plantwxyz/widcedar.htm |title=Widdringtonia cedarbergensis |publisher=PlantZAfrica.com |date= |accessdate=2015-08-18}}</ref><ref>University of the Witwatersrand: [https://web.archive.org/web/20060428013016/http://www.wits.ac.za/museums/herbarium/trcflis.htm Recommended English names for trees of Southern Africa]</ref> is a species of ''[[Widdringtonia]]'' native to [[South Africa]], where it is [[endemism|endemic]] to the [[Cederberg|Cederberg Mountains]] northeast of [[Cape Town]] in [[Western Cape Province]]. It is threatened by [[habitat loss]]<ref name=farjon>Farjon, A. (2005). ''Monograph of Cupressaceae and ''Sciadopitys. Royal Botanic Gardens, Kew. {{ISBN|1-84246-068-4}}</ref><ref>Hilton-Taylor, C. et al. 1998. [http://www.iucnredlist.org/details/30365/all ''Widdringtonia cedarbergensis'']. Downloaded on 10 July 2007.</ref><ref>Pauw, C. A. & Linder, H. P. 1997. ''Widdringtonia'' systematics, ecology and conservation status. ''Bot. J. Linn. Soc.'' 123: 297-319.</ref> and protected in South Africa under the National Forest Act (Act 84) of 1998.<ref name="dwaf">{{cite web |
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==References== |
==References== |
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*{{cite web |title=''Widdringtonia cedarbergensis''|work= |
*{{cite web |title=''Widdringtonia cedarbergensis''|work=PlantZAfrica.com|url=http://www.plantzafrica.com/plantwxyz/widcedar.htm|accessdate=2010-03-04}} |
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Revision as of 17:57, 8 June 2020
| Widdringtonia wallichii | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnospermae |
| Division: | Pinophyta |
| Class: | Pinopsida |
| Order: | Cupressales |
| Family: | Cupressaceae |
| Genus: | Widdringtonia |
| Species: | W. wallichii
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| Binomial name | |
| Widdringtonia wallichii Endl. ex Carrière
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| Synonyms[2] | |
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Wikimedia Commons has media related to Widdringtonia wallichii.
Widdringtonia wallichii, Clanwilliam cedar or Clanwilliam cypress, previously Widdringtonia cedarbergensis[3][4] is a species of Widdringtonia native to South Africa, where it is endemic to the Cederberg Mountains northeast of Cape Town in Western Cape Province. It is threatened by habitat loss[5][6][7] and protected in South Africa under the National Forest Act (Act 84) of 1998.[8]
It is a small evergreen tree growing to 5–7 m (rarely to 20 m) tall. The leaves are scale-like, 1.5 mm long and 1 mm broad on small shoots, up to 15 mm long on strong-growing shoots, and arranged in opposite decussate pairs. The cones are globose to rectangular, 2–3 cm long, with four scales.[5]
Chemical constituents
The essential oil derived from leaves contains terpinen-4-ol (36.0%), sabinene (19.2%), γ-terpinene (10.4%), α-terpinene (5.5%) and myrcene (5.5%).[9] The wood oil contains thujopsene (47.1%), α-cedrol (10.7%), widdrol (8.5%) and cuparene (4.0%).[9]
References
- ^ Farjon, A.; February, E.; Higgins, S.; Fox, S.; Raimondo, D. (2013). "Widdringtonia cedarbergensis". IUCN Red List of Threatened Species. 2013: e.T30365A2793077. doi:10.2305/IUCN.UK.2013-1.RLTS.T30365A2793077.en.
{{cite journal}}: Unknown parameter|last-author-amp=ignored (|name-list-style=suggested) (help) - ^ The Plant List: A Working List of All Plant Species, retrieved 14 May 2017
- ^ "Widdringtonia cedarbergensis". PlantZAfrica.com. Retrieved 2015-08-18.
- ^ University of the Witwatersrand: Recommended English names for trees of Southern Africa
- ^ a b Farjon, A. (2005). Monograph of Cupressaceae and Sciadopitys. Royal Botanic Gardens, Kew. ISBN 1-84246-068-4
- ^ Hilton-Taylor, C. et al. 1998. Widdringtonia cedarbergensis. Downloaded on 10 July 2007.
- ^ Pauw, C. A. & Linder, H. P. 1997. Widdringtonia systematics, ecology and conservation status. Bot. J. Linn. Soc. 123: 297-319.
- ^ "Protected Trees" (PDF). Department of Water Affairs and Forestry, Republic of South Africa. 30 June 2013.
- ^ a b Kamatou, G.P.P.; Viljoen, A.M.; Özek, T.; Başer, K.H.C. (2010). "Chemical composition of the wood and leaf oils from the "Clanwilliam Cedar" (Widdringtonia cedarbergensis J.A. Marsh): A critically endangered species". South African Journal of Botany. 76 (4): 652. doi:10.1016/j.sajb.2010.04.002.
- "Widdringtonia cedarbergensis". PlantZAfrica.com. Retrieved 2010-03-04.