Cypress-like scaly spruce
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Cypress-like scaly spruce ( Athrotaxis cupressoides ) in Cradle Mountain Lake St. Clair National Park in Tasmania |
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| Scientific name | ||||||||||||
| Athrotaxis cupressoides | ||||||||||||
| D. Don |
The athrotaxis cupressoides or cypress shed spruce ( Athrotaxis cupressoides ) is a plant from the genus of athrotaxis ( Athrotaxis ) in the family of cypress plants (Cupressaceae). The evergreen conifer is native to Tasmania .
description
The cypress-like scaly spruce is an evergreen tree and reaches heights of 6 to 15 m. The treetop is broad, columnar with ascending branches. The bark is brown-gray. The branches are thick and somewhat fleshy; they are in three-whiskers. The scaly leaves are about 3 to 4 mm long. They are dull, dark green and overlap like roof tiles.
The cypress-like scaly spruce is monoecious ( monoecious ). The male cones sit at the branch ends, are 3 mm in size and spherical with 2 to 4 pollen sacs. The female cones are hanging at the end of side shoots. They are 0.5 to 1.5 cm long, orange and spherical. The scales are thickened and have a flat triangular, bent back umbo. The seeds are winged with two straight wings. The seedlings form two cotyledons ( cotyledons ). Germination takes place epigeously .
The tree species is very long-lived; several specimens are known to be over 1000 years old.
distribution
The species is endemic to Tasmania . It comes at altitudes of 640 to 1067 m above sea level. NN in the western part of the island, including at Lake Saint Clair. The occurrences are close to the tree line, often above the tree line of the eucalyptus .
Systematics
The species was first described in 1838 by the British botanist David Don .
swell
- Christopher J. Earle: Athrotaxis cupressoides. In: The Gymnosperm Database. December 12, 2010, accessed October 20, 2011 .
Individual evidence
- ↑ Ann. Nat. Hist. 1: 234. 1838. See entry at GRIN .
Web links
- Athrotaxis cupressoides Range Map. Arboretum de Villardebelle, accessed on October 20, 2011 (English, distribution map).
- Athrotaxis cupressoides in the endangered Red List species the IUCN 2008. Posted by: Conifer Specialist Group, 2000. Accessed April 19 of 2009.
- Armin Jagel: Athrotaxis cupressoides. Botanical Garden of the Ruhr University Bochum, archived from the original on January 17, 2004 ; Retrieved October 20, 2011 (photos).
- Pictures of the cones, homepage Veit M. Dörken, University of Konstanz