''Fokienia'' is a genus of conifer tree belonging to the
cypress
Cypress is a common name for various coniferous trees or shrubs of northern temperate regions that belong to the family Cupressaceae. The word ''cypress'' is derived from Old French ''cipres'', which was imported from Latin ''cypressus'', the ...
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
. In its characteristics, ''Fokienia'' is intermediate between the genera of ''
Chamaecyparis
''Chamaecyparis'', common names cypress or false cypress (to distinguish it from related cypresses), is a genus of conifers in the cypress family Cupressaceae, native to eastern Asia (Japan and Taiwan) and to the western and eastern margins of th ...
'' and ''
Calocedrus
''Calocedrus'', the incense cedar (alternatively spelled incense-cedar), is a genus of coniferous trees in the cypress family Cupressaceae first described as a genus in 1873. It is native to eastern Asia and western North America.
The generic n ...
''. Genetically ''Fokienia'' is much closer to ''Chamaecyparis'', and not all researchers recognize ''Fokienia'' as a separate genus.
The genus comprises only one living
species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
, ''Fokienia hodginsii'' or Fujian cypress (; vi, Pơmu, links=no), and one
fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...
species (''Fokienia ravenscragensis'').
[Arboretum de Villardebelle: photo of cone](_blank)
/ref>
''Fokienia hodginsii'' is native from southeastern China (provinces of Zhejiang
Zhejiang ( or , ; , also romanized as Chekiang) is an eastern, coastal province of the People's Republic of China. Its capital and largest city is Hangzhou, and other notable cities include Ningbo and Wenzhou. Zhejiang is bordered by Jiang ...
, Guizhou
Guizhou (; formerly Kweichow) is a landlocked province in the southwest region of the People's Republic of China. Its capital and largest city is Guiyang, in the center of the province. Guizhou borders the autonomous region of Guangxi to t ...
, Yunnan
Yunnan , () is a landlocked Provinces of China, province in Southwest China, the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is ...
and Fujian
Fujian (; alternately romanized as Fukien or Hokkien) is a province on the southeastern coast of China. Fujian is bordered by Zhejiang to the north, Jiangxi to the west, Guangdong to the south, and the Taiwan Strait to the east. Its capi ...
) to Northern Vietnam
Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i ...
(provinces of Ha Bac, Hà Giang
Hà Giang () is a city located on the banks of the Lô River in the Northeast region of Vietnam. It is the capital of Hà Giang Province. The city has an area of 135.33 km2 and a population of 55 559 inhabitants. The population is compose ...
, Hà Tĩnh, Hòa Bình, Sơn La
Sơn La (; Tai Dam: ) is a city in the north-west region of Vietnam. It is the capital of Sơn La Province. It is bordered by Thuận Châu District, Mường La District, and Mai Sơn District.
History
In the era of the Sip Song Chau Tai, S ...
, Nghệ An, Lào Cai
Lào Cai () is a city in the Northwest region of Vietnam. It is the capital of Lào Cai Province. The city borders Bảo Thắng District, Bát Xát District, Sa Pa and the city of Hekou Yao Autonomous County, in Yunnan province of southwes ...
, Lai Châu, Thanh Hóa
Thanh Hóa () is the capital of Thanh Hóa Province. The city is situated in the east of the province on the Ma River (Sông Mã), about 150 kilometers (93 miles) south of Hanoi and 1560 kilometers (969 miles) north of Ho Chi Minh City. Thanh ...
, Tuyên Quang
Tuyên Quang () is a city in Vietnam, and is the capital of Tuyên Quang Province.
History
The French post at Tuyên Quang was defended for four months against 12,000 troops of the Yunnan Army and the Black Flag Army by two companies of the Fre ...
, Yên Bái
Yên Bái () is a city in Vietnam. It is the capital of Yên Bái Province, in the north-east region of Vietnam. The city borders Yên Bình District and Trấn Yên District. The city is a settlement along the banks of the Red River, approxim ...
and Vĩnh Phú), west central Vietnam (provinces of Đắk Lắk, Gia Lai, Lâm Đồng), and west to northern Laos
Laos (, ''Lāo'' )), officially the Lao People's Democratic Republic ( Lao: ສາທາລະນະລັດ ປະຊາທິປະໄຕ ປະຊາຊົນລາວ, French: République démocratique populaire lao), is a socialist ...
. The name derives from the old Romanised
Romanization or romanisation, in linguistics, is the conversion of text from a different writing system to the Roman (Latin) script, or a system for doing so. Methods of romanization include transliteration, for representing written text, and ...
name of Fujian province, China, from where the first specimen was introduced to Europe, collected by Captain Hodgins in 1908.
''Fokienia'' is an evergreen
In botany, an evergreen is a plant which has foliage that remains green and functional through more than one growing season. This also pertains to plants that retain their foliage only in warm climates, and contrasts with deciduous plants, which ...
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 stomata
In botany, a stoma (from Greek ''στόμα'', "mouth", plural "stomata"), also called a stomate (plural "stomates"), is a pore found in the epidermis of leaves, stems, and other organs, that controls the rate of gas exchange. The pore is bor ...
l 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.
The male cone
A cone is a three-dimensional geometric shape that tapers smoothly from a flat base (frequently, though not necessarily, circular) to a point called the apex or vertex.
A cone is formed by a set of line segments, half-lines, or lines con ...
s 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 seed
A seed is an embryonic plant enclosed in a protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiospe ...
s on each scale. They are around 4 mm long, angular and pointed. On the upper and lower surfaces there are 2 large resin
In polymer chemistry and materials science, resin is a solid or highly viscous substance of plant or synthetic origin that is typically convertible into polymers. Resins are usually mixtures of organic compounds. This article focuses on natu ...
blisters. The wings are lateral and very unequal.
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
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...
or granite
Granite () is a coarse-grained (phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies undergro ...
terrain above 900 m altitude.
The fossil species ''Fokienia ravenscragensis'' was described from the early Paleocene
The Paleocene, ( ) or Palaeocene, is a geological epoch (geology), epoch that lasted from about 66 to 56 mya (unit), million years ago (mya). It is the first epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), E ...
(66-60 m.a.
A Master of Arts ( la, Magister Artium or ''Artium Magister''; abbreviated MA, M.A., AM, or A.M.) is the holder of a master's degree awarded by universities in many countries. The degree is usually contrasted with that of Master of Science. Tho ...
before present) Ravenscrag formation of southwest Saskatchewan
Saskatchewan ( ; ) is a Provinces and territories of Canada, province in Western Canada, western Canada, bordered on the west by Alberta, on the north by the Northwest Territories, on the east by Manitoba, to the northeast by Nunavut, and on t ...
and adjacent Alberta
Alberta ( ) is one of the thirteen provinces and territories of Canada. It is part of Western Canada and is one of the three prairie provinces. Alberta is bordered by British Columbia to the west, Saskatchewan to the east, the Northwest Ter ...
, 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
Dao, Dão or DAO may refer to:
* Tao (Chinese: "The Way" 道), a philosophical concept
* Dao (Chinese sword) (刀), a type of Chinese sword
* Dao (Naga sword), a weapon and a tool of Naga people
People and language
* Yao people, a minority ethni ...
tribesmen use Fujian cypress timber for wall partitioning or roofing. The timber was formerly used for coffin
A coffin is a funerary box used for viewing or keeping a corpse, either for burial or cremation.
Sometimes referred to as a casket, any box in which the dead are buried is a coffin, and while a casket was originally regarded as a box for jewel ...
s 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
Charcoal is a lightweight black carbon residue produced by strongly heating wood (or other animal and plant materials) in minimal oxygen to remove all water and volatile constituents. In the traditional version of this pyrolysis process, cal ...
of high heat value. It is considered an ecologically threatened species in Vietnam.
Distillation
Distillation, or classical distillation, is the process of separation process, separating the components or substances from a liquid mixture by using selective boiling and condensation, usually inside an apparatus known as a still. Dry distilla ...
, especially of its root, gives an essential oil
An essential oil is a concentrated hydrophobic liquid containing volatile (easily evaporated at normal temperatures) chemical compounds from plants. Essential oils are also known as volatile oils, ethereal oils, aetheroleum, or simply as the o ...
called pemou oil used in aromatherapy
Aromatherapy is based on the usage of aromatic materials including essential oils and other aroma compounds, with claims for improving psychological and physical well-being. It is offered as a complementary therapy or as a form of alternative m ...
.
In China, freshly harvested green cypress branches are burned to smoke and cure salted meat and sausage, sometimes in combination with pomelo
The pomelo ( ), ''Citrus maxima'', is the largest citrus fruit from the family Rutaceae and the principal ancestor of the grapefruit. It is a natural, non-hybrid, citrus fruit, native to Southeast Asia. Similar in taste to a sweet grapefr ...
and tangerine
The tangerine is a type of citrus fruit that is orange in color. Its scientific name varies. It has been treated as a separate species under the name ''Citrus tangerina'' or ''Citrus'' × ''tangerina'', or treated as a variety of ''Citrus retic ...
peels.[Longmeimei cooking channel: ]
References
External links
{{Taxonbar, from1=Q13060340, from2=Q1473146
Cupressaceae
Monotypic conifer genera
Near threatened plants
Trees of China
Trees of Laos
Trees of Vietnam
Taxobox binomials not recognized by IUCN