Fokienia

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Fokienia
Fokienia hodginsii - Kunming Botanical Garden - DSC03140.JPG
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Pinophyta
Class: Pinopsida
Order: Cupressales
Family: Cupressaceae
Subfamily: Cupressoideae
Genus: Fokienia
A.Henry & H.H.Thomas
Species:
F. hodginsii
Binomial name
Fokienia hodginsii
(Dunn) A.Henry & H.H.Thomas

Fokienia is a genus of conifer tree belonging to the cypress family. In its characteristics, Fokienia is intermediate between the genera of Chamaecyparis and Calocedrus . Genetically Fokienia is much closer to Chamaecyparis, and not all researchers recognize Fokienia as a separate genus. [2] The genus comprises only one living species, Fokienia hodginsii or Fujian cypress (Chinese:福建柏; pinyin:Fújiànbǎi; Vietnamese: Pơmu), and one fossil species (Fokienia ravenscragensis). [3] [4]

Fokienia hodginsii is native from southeastern China (provinces of Zhejiang, Guizhou, Yunnan and Fujian) to Northern Vietnam (provinces of Ha Bac, Hà Giang, Hà Tĩnh, Hòa Bình, Sơn La, Nghệ An, Lào Cai, Lai Châu, Thanh Hóa, Tuyên Quang, Yên Bái and Vĩnh Phú), west central Vietnam (provinces of Đắk Lắk, Gia Lai, Lâm Đồng), and west to northern Laos. The name derives from the old romanised name of Fujian province, China, from where the first specimen was introduced to Europe, collected by Captain Hodgins in 1908. [3] [4]

Fokienia hodginsii Fokienia hodginsii.png
Fokienia hodginsii

Fokienia is an evergreen tree, 25–30 m tall. It has greyish-brownish bark that peels off when the tree is young. On older trees, the bark presents longitudinal fissures and becomes aromatic. The leaves are arranged in flattened branchlet systems, with the branchlets in one plane. The leaves on adult trees are in opposite decussate pairs, the alternating pairs not evenly spaced so appearing as whorls of 4 at the same level; they are sub-acute, about 2–5 mm long, glossy green above, and with white stomatal bands below. The lateral leaves are ovate and compressed, and facial leaves are oblanceolate with a triangular apex. On young trees, the leaves are larger, up to 8–10 mm long and 6 mm broad. [3]

[4]

The male cones are oval or cylindrical, around 2.5 mm long, terminal on the shoots. They have from 3 to 5 pairs of scales. The female cones are much larger, 15–25 mm long and 14–22 mm broad, globose or sub-globose, and ripen in the second year. They have 5-8 pairs of scales. There are two winged seeds on each scale. They are around 4 mm long, angular and pointed. On the upper and lower surfaces there are 2 large resin blisters. The wings are lateral and very unequal. [3] [4]

The tree does not tolerate shade, and requires mild climate and abundant rainfall to grow best. It occurs mainly on humid soil in montane habitats. In Vietnam, it grows on limestone or granite terrain above 900 m elevation.

The fossil species Fokienia ravenscragensis was described from the early Paleocene (66-60 m.a. before present) Ravenscrag formation of southwest Saskatchewan and adjacent Alberta, Canada.

Uses

The wood is very much like that of other cedars in cypress family with a fine, straight grain and distinct aroma. Laotian and Dao tribesmen use Fujian cypress timber for wall partitioning or roofing. The timber was formerly used for coffins and is occasionally referred to as "coffinwood". In Vietnam, it is considered a precious timber because of its characteristic aroma and its exceptional density; therefore it is used to make art works, pieces of furniture, and charcoal of high heat value. It is considered an ecologically threatened species in Vietnam.

Distillation, especially of its root, gives an essential oil called siam wood or pemou oil used in aromatherapy. [5]

In China, freshly harvested green cypress branches are burned to smoke and cure salted meat [6] and sausage, sometimes in combination with pomelo and tangerine peels. [7]

Related Research Articles

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Chamaecyparis lawsoniana, known as Port Orford cedar or Lawson cypress, is a species of conifer in the genus Chamaecyparis, family Cupressaceae. It is native to Oregon and northwestern California, and grows from sea level up to 4,900 feet (1,500 m) in the valleys of the Klamath Mountains, often along streams.

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Chamaecyparis thyoides, a species of Cupressaceae, is native to the Atlantic coast of North America and is found from southern Maine to Georgia and along the Gulf of Mexico coast from Florida to Mississippi. It is one of two species of Chamaecyparis found in North America. C. thyoides resides on the East Coast and C. lawsoniana can be found on the West Coast. There are two geographically isolated subspecies, treated by some botanists as distinct species, by others at just varietal rank: Chamaecyparis thyoides thyoides and Chamaecyparis thyoides henryae (H.L.Li) E.Murray The species grows in forested wetlands where they tend to dominate the canopy. The trees are associated with a wide variety of other wetland species because of their wide north-south range. The remaining populations are now found mostly in remote locations that would be difficult to harvest, so its popularity as a source of lumber has decreased.

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Chamaecyparis obtusa is a species of cypress native to central Japan in East Asia, and widely cultivated in the temperate northern hemisphere for its high-quality timber and ornamental qualities, with many cultivars commercially available.

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<i>Glyptostrobus pensilis</i> Species of conifer

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<i>Keteleeria davidiana</i> Species of conifer

Keteleeria davidiana is a coniferous evergreen tree native to Taiwan and southeast China, in the provinces of Gansu, Guangxi, Guizhou, Hubei, Hunan, Shaanxi, Sichuan, and Yunnan. It also occurs in the very northern part of Vietnam. The tree is restricted to hills, mountains, and valleys at elevations of 200–1500 m. Generally, it grows in regions with a more continental climate than the other two Keteleeria species.

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<i>Juniperus squamata</i> Species of Juniper

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<i>Chamaecyparis formosensis</i> Species of conifer

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<i>Widdringtonia schwarzii</i> Species of conifer endemic to South Africa

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References

  1. Thomas, P. & Yang, Y. (2013). "Fokienia hodginsii". IUCN Red List of Threatened Species . 2013: e.T32351A2815809. doi: 10.2305/IUCN.UK.2013-1.RLTS.T32351A2815809.en .
  2. Christopher J. Earle (2011). "Chamaecyparis hodginsii". The Gymnosperm Database. Retrieved 31 March 2012.
  3. 1 2 3 4 Thomas, P.; Yang, Y. (2013). "Chamaecyparis hodginsii". IUCN Red List of Threatened Species . 2013: e.T32351A2815809. doi: 10.2305/IUCN.UK.2013-1.RLTS.T32351A2815809.en . Retrieved 12 November 2021.
  4. 1 2 3 4 Arboretum de Villardebelle: photo of cone
  5. Carol Schiller (11 May 2009), The Aromatherapy Encyclopedia: A Concise Guide to Over (385 Plant Oils: Easyread Super Large 24pt ed.), ReadHowYouWant.com, p. 241, ISBN   978-1-4429-7342-8
  6. Guizhou girl channel: The Crispy Duck is Smoked with Leaves, archived from the original on 2021-06-27, retrieved 2021-06-27
  7. Longmeimei cooking channel: Smoked Sausage from a Whole Pig! Enough for Our Family to Eat in Year 2021, archived from the original on 2021-12-13, retrieved 2021-06-27