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definitions
Sciadopitys (n.)
1.type and sole genus of Sciadopityaceae; Japanese umbrella pines
synonyms
Sciadopitys (n.)
phrases
analogical dictionary
biology[Domaine]
FloweringPlant[Domaine]
genus - gymnosperm family[Hyper.]
class Gymnospermae, division Gymnospermophyta, Gymnospermae, Gymnospermophyta - Coniferales, order Coniferales[membre]
biology[Domaine]
FloweringPlant[Domaine]
gymnosperm genus[Hyper.]
Sciadopitys (n.)
Wikipedia
Sciadopitys
"Umbrella Pine" redirects here. For the other tree species less commonly referred to by this name, see Stone Pine.
| Sciadopitys Temporal range: 230–0 Ma |
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|---|---|
 |
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| Sciadopitys verticillata | |
| Conservation status | |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Pinophyta |
| Class: | Pinopsida |
| Order: | Pinales |
| Family: | Sciadopityaceae Luerss. |
| Genus: | Sciadopitys Siebold & Zucc. |
| Species: | S. verticillata |
| Binomial name | |
| Sciadopitys verticillata (Thunb.) Siebold & Zucc. |
|
The Koyamaki (Sciadopitys verticillata), or Japanese Umbrella-pine, is a unique conifer endemic to Japan. It is the sole member of the family Sciadopityaceae and genus Sciadopitys, a living fossil with no close relatives, and known in the fossil record for about 230 million years.
Sciadopitys verticillata foliage
Its genus name comes from the Greek prefix sciado- meaning "shadow" and pitys, meaning "pine"; the specific epithet means "with whorls".
It is an evergreen tree that can grow 15-27m tall, with brown main shoots bearing whorls of 7–12 cm long flexible green cladodes that look like, and perform the function of, leaves but are actually composed of stem tissues; occasionally, a cladode will be forked and produce a bud in the 'v' of the fork. The cones are 6–11 cm long, mature in about 18 months, and have flattish scales that open to release the seeds.
It is a very attractive tree and is popular in gardens, despite its slow growth rate and high cost.
Koyamaki was chosen as the Japanese Imperial crest for Prince Hisahito of Akishino, currently third in line to the Chrysanthemum Throne.
The plant was first introduced to Europe by John Gould Veitch in September 1860.[1]
Infrared microspectroscopy has identified conifers of the family Sciadopityaceae as the principal source of Baltic amber rather than as previously thought members of the families Araucariaceae and Pinaceae.[2]
References
- ^ James Herbert Veitch (2006 reprint). Hortus Veitchii. Caradoc Doy. pp. 51–52. ISBN 0-9553515-0-2.
- ^ Wolfe AP, Tappert R, Muehlenbachs K, Boudreau M, McKellar RC, Basinger JF, Garrett A. (2009). A new proposal concerning the botanical origin of Baltic amber. Proc Biol Sci. 276(1672):3403-12. doi:10.1098/rspb.2009.0806 PMID 19570786
External links
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Wikimedia Commons has media related to: Sciadopitys verticillata |
- Conifer Specialist Group (1998). Sciadopitys verticillata. 2006. IUCN Red List of Threatened Species. IUCN 2006. www.iucnredlist.org. Retrieved on 11 May 2006.
- Arboretum de Villardebelle Photos: foliage, immature cones
- Arboretum de Villardebelle Photo: mature cone
- Gymnosperm Database
- Photos of plant habit
- Images: Cone,Leaf,Seeds Flavon's Wild herb and Alpine plants
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