Croton hancei: Difference between revisions
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|name = Hong Kong croton<br>''Croton hancei'' |
|name = Hong Kong croton<br>''Croton hancei'' |
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'''''Croton hancei''''', the '''Hong Kong croton''', is a [[species]] of ''[[Croton (genus)|Croton]]'' which is [[endemism|endemic]] to [[Tsing Yi Island]], [[Hong Kong]]. In Hong Kong, it is a protected species under the [[Forestry Regulations Cap. 96A]]. |
'''''Croton hancei''''' <small>Benth.</small>, the '''Hong Kong croton''', is a shrub or small tree, a [[species]] of ''[[Croton (genus)|Croton]]'' which is [[endemism|endemic]] to [[Tsing Yi Island]], [[Hong Kong]]. In Hong Kong, it is a protected species under the [[Forestry Regulations Cap. 96A]]. |
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''Croton hancei'' was discovered by [[Henry Fletcher Hance|H. F. Hance]] on [[Hong Kong Island]] in the 1850s and published by [[botanist]] [[George Bentham]] as a new species in ''Flora Hongkongensis'' in 1861. The species was not observed again until 21 February 1997, when staff of the [[Hong Kong Herbarium]] of the [[Agriculture, Fisheries and Conservation Department]] found an "unknown" species on a steep slope woodland under the highest peak, [[Tsing Yi Peak]], on [[Tsing Yi|Tsing Yi Island]]. After confirmation by experts from the South China Institute of Botany, the Hong Kong Croton was re-discovered after a gap of over a century. |
''Croton hancei'' was discovered by [[Henry Fletcher Hance|H. F. Hance]] on [[Hong Kong Island]] in the 1850s and published by [[botanist]] [[George Bentham]] as a new species in ''Flora Hongkongensis'' in 1861. The species was not observed again until 21 February 1997, when staff of the [[Hong Kong Herbarium]] of the [[Agriculture, Fisheries and Conservation Department]] found an "unknown" species on a steep slope woodland under the highest peak, [[Tsing Yi Peak]], on [[Tsing Yi|Tsing Yi Island]]. After confirmation by experts from the South China Institute of Botany, the Hong Kong Croton was re-discovered after a gap of over a century. |
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The woodland measuring {{convert|1.05|ha}} is considered to be a [[Site of Special Scientific Interest (Hong Kong)|Site of Special Scientific Interest]] (SSSI) for the protection of the endemic Hong Kong croton. |
The woodland measuring {{convert|1.05|ha}} is considered to be a [[Site of Special Scientific Interest (Hong Kong)|Site of Special Scientific Interest]] (SSSI) for the protection of the endemic Hong Kong croton. |
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==Description== |
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[[Image:Croton hancei.jpg|thumb|left|''Croton hancei'']] |
[[Image:Croton hancei.jpg|thumb|left|''Croton hancei'']] |
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''Croton hancei'' is a [[monoecious]] shrub or treelet, ca. 5 m tall; the branches [[glabrousness|glabrous]], the [[leaf shape|oblong-lanceolate]] leaves are clustered at the stem apex on [[petiole (botany)|petiole]]s 2-5 mm long, the leaf blade 8-18 × 2-5 cm, papery in texture, with both surfaces glabrous; the base is attenuate to obtuse, the margins [[leaf|entire or serrulate]], and the apex [[leaf shape|acuminate]]. |
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The [[Inflorescence]]s are terminal, ca. 3 cm, the bracts small. The male flowers are usually many per bract, the bud globose, ca. 2 mm in diameter, the petals narrow and small. The female flowers are usually solitary, at the base of the inflorescence. Fl. Jun-Aug. <ref name=Wu>Wu Zhengyi, Peter H Raven and Hong Deyuan in Wu, Z. & Raven, P. (eds) ''Flora of China'', Vol. 11. Oxalidaceae through Aceraceae Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA. ISBN 978-0915279371 [http://www.efloras.org/flora_page.aspx?flora_id=2 online at www.efloras.org]</ref> |
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==See also== |
==See also== |
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*[[List of Croton species|List of ''Croton'' species]] |
*[[List of Croton species|List of ''Croton'' species]] |
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==References== |
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{{reflist}} |
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==External links== |
==External links== |
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{{commonscat-inline|Croton hancei|''Croton hancei''}} |
{{commonscat-inline|Croton hancei|''Croton hancei''}} |
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Revision as of 14:20, 13 December 2012
| Hong Kong croton Croton hancei | |
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| Hong Kong Croton (flower) | |
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| Species: | C. hancei
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| Binomial name | |
| Croton hancei | |
Croton hancei Benth., the Hong Kong croton, is a shrub or small tree, a species of Croton which is endemic to Tsing Yi Island, Hong Kong. In Hong Kong, it is a protected species under the Forestry Regulations Cap. 96A.
Croton hancei was discovered by H. F. Hance on Hong Kong Island in the 1850s and published by botanist George Bentham as a new species in Flora Hongkongensis in 1861. The species was not observed again until 21 February 1997, when staff of the Hong Kong Herbarium of the Agriculture, Fisheries and Conservation Department found an "unknown" species on a steep slope woodland under the highest peak, Tsing Yi Peak, on Tsing Yi Island. After confirmation by experts from the South China Institute of Botany, the Hong Kong Croton was re-discovered after a gap of over a century.
The woodland measuring 1.05 hectares (2.6 acres) is considered to be a Site of Special Scientific Interest (SSSI) for the protection of the endemic Hong Kong croton.
Description
Croton hancei is a monoecious shrub or treelet, ca. 5 m tall; the branches glabrous, the oblong-lanceolate leaves are clustered at the stem apex on petioles 2-5 mm long, the leaf blade 8-18 × 2-5 cm, papery in texture, with both surfaces glabrous; the base is attenuate to obtuse, the margins entire or serrulate, and the apex acuminate.
The Inflorescences are terminal, ca. 3 cm, the bracts small. The male flowers are usually many per bract, the bud globose, ca. 2 mm in diameter, the petals narrow and small. The female flowers are usually solitary, at the base of the inflorescence. Fl. Jun-Aug. [1]
See also
References
- ^ Wu Zhengyi, Peter H Raven and Hong Deyuan in Wu, Z. & Raven, P. (eds) Flora of China, Vol. 11. Oxalidaceae through Aceraceae Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA. ISBN 978-0915279371 online at www.efloras.org
External links
Media related to Croton hancei at Wikimedia Commons
Data related to Croton hancei at Wikispecies
- "Hong Kong Croton (Hong Kong Herbarium)". Hong Kong Herbarium. Retrieved March 1, 2007.
- "Hong Kong Croton reappears in Hong Kong (Hong Kong Herbarium)". Hong Kong Herbarium. Retrieved March 1, 2007.
- "Ecological Diary". hknature.net. Retrieved March 1, 2007.