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Tetraclinis articulata
Tetraclinis articulata.JPG
Conservation status
Scientific classification
Kingdom: Plantae
Division: Pinophyta
Class: Pinopsida
Order: Pinales
Family: Cupressaceae
Genus: Tetraclinis
Species: T. articulata
Binomial name
Tetraclinis articulata
(Vahl) Masters
Synonyms
  • Callitris quadrivalvis
  • Thuja articulata
Tetraclinis forest at Al Hoceima National Park

Tetraclinis (also called arar,[1] araar[2] or Sictus tree) is a genus of evergreen coniferous tree in the cypress family Cupressaceae, containing only one species, Tetraclinis articulata, also known as Thuja articulata,[3] sandarac, sandarac tree[4] or Barbary thuja,[5] endemic to the western Mediterranean region. It is native to northwestern Africa in the Atlas Mountains of Morocco, Algeria and Tunisia, with two small outlying populations on Malta, and near Cartagena in southeast Spain. It grows at relatively low altitudes in a hot, dry subtropical Mediterranean climate.[6]

Its closest relatives are Platycladus, Microbiota and Calocedrus, with the closest resemblance to the latter. In older texts, it was sometimes treated in Thuja or Callitris, but it is less closely related to those genera.[6]

Tetraclinis cones at Al Hoceima National Park

It is a small, slow-growing tree, to 6–15 m (rarely 20 m) tall and 0.5 m (rarely 1 m) trunk diameter, often with two or more trunks from the base. The foliage forms in open sprays with scale-like leaves 1–8 mm long and 1–1.5 mm broad; the leaves are arranged in opposite decussate pairs, with the successive pairs closely then distantly spaced, so forming apparent whorls of four. The cones are 10–15 mm long, green ripening brown in about 8 months from pollination, and have four thick scales arranged in two opposite pairs. The seeds are 5–7 mm long and 2 mm broad, with a 3–4 mm broad papery wing on each side.[6][7]

It is one of only a small number of conifers able to coppice (re-grow by sprouting from stumps), an adaptation to survive wildfire and moderate levels of browsing by animals. Old trees that have sprouted repeatedly over a long period form large burls at the base, known as lupias.[6]

Uses and symbolism[edit]

It is the national tree of Malta, where it is known as għargħar (derived from the Arabic name araar). It is now being used locally in afforestation projects.

The resin, known as sandarac, is used to make varnish and lacquer; it is particularly valued for preserving paintings.

The wood, known as thuya wood[8] or citron wood,[3] and historically also known as thyine wood, is used for decorative woodwork, particularly wood from burls at the base of the trunk. Use of the burl wood kills the tree[citation needed]. The market in Morocco is unsustainable, focusing as it does on the burl, and has resulted in mass deforestation of the species. The species is also threatened by overgrazing, which can kill the coppice regrowth before it gets tall enough to be out of the reach of livestock.[6]

Cultivation

The species is cultivated to be grown as an ornamental tree, valued in hot, dry climates. It is also pruned in a hedge form, for privacy and security.[7] The plant can be trained for use as Bonsai specimens.

Gallery[edit]

References[edit]

  1. ^ "Tetraclinis articulata". The Gymnosperm Database. Retrieved 2011-02-13. 
  2. ^ but it is ambiguous arabic name also given to Juniperus phoenicea
  3. ^ a b Memidex: sandarac (wood) Retrieved 2012-05-16
  4. ^ Collins: sandarac and sandarac tree Retrieved 2012-05-16
  5. ^ Jacques Blondel & James Aronson: Biology and Wildlife of the Mediterranean Region, Oxford University Press 1999 Retrieved 2012-05-16
  6. ^ a b c d e Farjon, A. (2005). Monograph of Cupressaceae and Sciadopitys. Royal Botanic Gardens, Kew. ISBN 1-84246-068-4
  7. ^ a b Rushforth, K. (1999). Trees of Britain and Europe. Collins ISBN 0-00-220013-9.
  8. ^ Arc-genesis: Thuya Wood Retrieved 2012-05-16

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Tetraclinis — Please support Wikipedia.
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30 news items

Descubriendo Murcia

Descubriendo Murcia
Mon, 18 Aug 2014 09:45:10 -0700

Cipres de Cartagena Proyecto LIFE Tetraclinis para proteger el Ciprés de Cartagena La Dirección General de Medio Ambiente ha iniciado el proyecto europeo LIFE Tetraclinis Europa, cuyo objetivo es preservar y ampliar el hábitat donde resiste el ciprés ...
 
La Verdad
Thu, 27 Mar 2014 08:35:28 -0700

Es también el caso del ciprés de Cartagena ('Tetraclinis articulata') que, aunque es un árbol emblemático de la Región, investigadores de las áreas de Botánica y Ecología de la Universidad de Murcia (UMU) consideran que sería recomendable realizar un ...

La Opinión de Murcia

ABC.es
Sat, 10 May 2014 04:08:27 -0700

La Dirección General de Medio Ambiente lidera un proyecto europeo denominado 'LIFE-Tetraclinis-Europa', cuyo objetivo es preservar, mejorar y ampliar el área de los bosques del conocido popularmente como ciprés de Cartagena (Tetraclinis articulata), ...
 
Europa Press
Wed, 06 Aug 2014 02:47:48 -0700

La Dirección General de Medio Ambiente ha iniciado el calendario de actuaciones del proyecto europeo LIFE Tetraclinis Europa, cuyo objetivo es preservar, mejorar y ampliar el área de los bosques del denominado ciprés de Cartagena (tetraclinis ...
 
La Verdad
Wed, 13 Aug 2014 16:52:00 -0700

La Junta de Gobierno local tiene previsto aprobar esta mañana la participación del Ayuntamiento en el Proyecto Europeo Life Tetraclinis Europa, para la conservación de los bosques de sabina mora o ciprés cartagenero (Tetraclinis articulata). En el ...
 
ElTiempo.com
Wed, 21 May 2014 14:58:45 -0700

La medina, con sus hermosas y estrechas calles, atiborradas de negocios y de galerías de arte y artesanías, fue declarada patrimonio de la humanidad en el 2001. El agradable aroma de la tuya, madera del árbol Tetraclinis articulata y con la que se ...
 
La Verdad
Fri, 20 Jun 2014 14:04:07 -0700

c) ¿Alguien recuerda cuando ir a Calblanque en verano (años 2008, 2009, etc) suponía dar vueltas buscando aparcamiento como si del centro de una ciudad se tratara? Al final acabábamos aparcando encima de las plantas, de bajo de los tetraclinis, ...
 
La Verdad
Wed, 21 May 2014 06:57:17 -0700

Entre sus valores naturales, destaca su vegetación iberoafricana, con endemismos y hábitats muy raros en el contexto europeo, además de bosques de 'Tetraclinis articulata' y matorrales de 'Periploca'. En cuanto a fauna, indica que cuenta con decenas de ...
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