Callitris intratropica
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| Callitris intratropica | ||||||||||||
| RTBaker & HGSm. |
Callitris intratropica is a plant from the family of the cypress family (Cupressaceae). It is native to northern Australia.
description
Callitris intratropica grows as an evergreen tree that can reach heights of up to 30 meters. The branches go straight or upright from the trunk.
The dark green to gray-green leaves are about 2 millimeters long. The back of the leaf is rounded.
The male cones, standing individually or in small groups, are elongated-egg-shaped with a thickness of about 3 millimeters. The female cones standing individually on the branches are flattened spherical with a diameter of 1.2 to 1.8 centimeters. Each cone consists of six thin cone scales and carries several seeds. The seeds are released shortly after ripening and the cones then fall from the branches. The chestnut-brown seeds are about 4 millimeters in size and have two or three wings.
Occurrence
The natural range of Callitris intratropica is in northern Australia. It includes north-eastern Western Australia , the northern Northern Territory and northern Queensland .
Callitris intratropica grows mainly on sandy soils .
Systematics
It was first described as Callitris intratropica in 1910 by Richard Thomas Baker and Henry George Smith in Pines of Australia , page 172. Synonyms for Callitris intratropica R.T.Baker & HCSm. are Callitris columellaris var. intratropica (RTBaker & HCSmith) J. Silba and Callitris robusta var. intratropica (RTBaker & HCSmith) Ewart & OBDavies .
Some authors assign it to Callitris columellaris .
use
The hard wood of Callitris intratropica is used economically and has a natural resistance to termite infestation . It is very suitable as firewood whose fragrant smoke keeps insects away. The Wagiman tribe use wood to make spears.
An essential oil , the so-called “Australian blue cypress oil”, can be extracted from the plant parts . It is used, among other things, in aromatherapy and in the manufacture of cosmetics and perfumes. The Tiwi used to use the oil to treat abdominal cramps and as an insect repellent and pain reliever. There are some plantings for the economic use of wood in Australia which, however, are of little importance due to the low growth rate of the species and which are used today for the extraction of the essential oil.
swell
- Christopher J. Earle: Callitris intratropica. In: The Gymnosperm Database. www.conifers.org, November 25, 2012, accessed January 27, 2013 .
- Callitris intratropica. In: Flora of Australia Online. www.anbg.gov.au, accessed on January 27, 2013 (English).
Individual evidence
- ↑ a b c d e f Christopher J. Earle: Callitris intratropica. (No longer available online.) In: The Gymnosperm Database. www.conifers.org, November 25, 2012, archived from the original on October 10, 2011 ; accessed on January 27, 2013 (English). Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ a b c d Callitris intratropica. In: Flora of Australia Online. www.anbg.gov.au, accessed on January 27, 2013 (English).
- ↑ Callitris intratropica. In: Germplasm Resources Information Network. www.ars-grin.gov, accessed on January 27, 2013 (English).
- ↑ Callitris intratropica at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed January 27, 2013.
