Cycas taitungensis
Cycas taitungensis is a species of genus Cycas endemic to Taitung County, south-eastern Taiwan. C. taitungensis, an evergreen tree, can grow up to about 5 m (16 ft) tall.[2] The species was not described until 1994, but its specimen was once applied as the type of species Cycas taiwaniana, which is not really distributed in Taiwan according to the further research.[3]
Cycas taitungensis | |
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Cycas taitungensis in the Botanischer Garten München-Nymphenburg, Germany | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | Cycadophyta |
Class: | Cycadopsida |
Order: | Cycadales |
Family: | Cycadaceae |
Genus: | Cycas |
Species: | C. taitungensis |
Binomial name | |
Cycas taitungensis Shen, Hill, Tsou & Chen | |
C. taitungensis was listed by the IUCN Red List of Threatened Plants in category "vulnerable" in 1997. However, small range, decline of mature specimens, and attack by invasive Aulacaspis scale (Diaspididae) warranted classification as "endangered" in 2010.[1]
Distribution
C. taitungensis is found in:
- Lu-Yeh Valley near Yanping Township (延平鄉)
- to the west of the Taitung Coastal Range in Donghe Township (東河鄉)
In Taitung Hungyeh Village Cycas Nature Reserve,[4] it is threatened by Aulacaspis yasumatsui, the cycad aulacaspis scale.
References
- Haynes, J. (2010). "Cycas taitungensis". IUCN Red List of Threatened Species. 2010: e.T42067A10642224. doi:10.2305/IUCN.UK.2010-3.RLTS.T42067A10642224.en.
- Jiarui Chen & Dennis W. Stevenson. "Cycas taitungensis". Flora of China. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA. Retrieved 27 September 2012.
- Shen, C. F.; K.D. Hill; C. H. Tsou; C. J. Chen (1994). "Cycas taitungensis C.F. Shen, K.D. Hill, C.H. Tsou & C.J. Chen, sp. nov. (Cycadaceae), a new name for the widely known cycad species endemic in Taiwan" (PDF). Botanical Bulletin of Academia Sinica. 35: 133–140.
- http://conservation.forest.gov.tw/EN/0000499
External links
- Cycas taitungensis - The Cycad Pages