Cupressus dupreziana
| Cupressus dupreziana | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnospermae |
| Division: | Pinophyta |
| Class: | Pinopsida |
| Order: | Cupressales
|
| Family: | Cupressaceae |
| Genus: | Cupressus |
| Species: | C. dupreziana
|
| Binomial name | |
| Cupressus dupreziana A.Camus | |
| |
| Range of Cupressus dupreziana | |
Cupressus dupreziana, the Saharan cypress,
This species is distinct from the allied Cupressus sempervirens (Mediterranean cypress) in its much bluer foliage with a white resin spot on each leaf, the smaller shoots often being flattened in a single plane. It also has smaller cones, only 1.5–2.5 cm long. Cupressus atlantica (Moroccan cypress) is more similar, and is treated as a variety of the Saharan cypress (C. dupreziana var. atlantica) by some authors.
Probably as a result of its isolation and low population, the Saharan cypress has evolved a unique reproductive system of male apomixis whereby the seeds develop entirely from the genetic content of the pollen. There is no genetic input from the female "parent", which only provides nutritional sustenance.[2] The Moroccan cypress does not share this characteristic.
The Saharan cypress is occasionally cultivated in southern and western Europe, in part for ex situ genetic conservation, but also as an ornamental tree.
An international arboretum is being established in Canberra, Australian Capital Territory (ACT), Australia within which will be established forests of rare and endangered species from throughout the world. One of these forests is dedicated to Cupressus dupreziana and 1300 of the trees have been propagated for planting in late 2007.
Notes
- ^ . Retrieved 19 November 2021.
- ISSN 1286-4560.
References
- Stewart, P.J. 1969. Cupressus dupreziana, threatened conifer of the Sahara. Biological Conservation 2: 10–12.
- Pichot, C., Fady, B., & Hochu, I. 2000. Lack of mother tree alleles in zymograms of Cupressus dupreziana A. Camus embryos. Ann. For. Sci. 57: 17–22. Full article (pdf file) Archived 2004-11-16 at the Wayback Machine
- Pichot, C., El Maátaoui, M., Raddi, S. & Raddi, P. 2001. Surrogate mother for endangered Cupressus. Nature 412: 39.
- Zsolt Debreczy; Istvan Racz (2012). Kathy Musial (ed.). Conifers Around the World (1st ed.). DendroPress. p. 1089. ISBN 978-9632190617.
External links
- Gymnosperm Database: Cupressus dupreziana
- Arboretum de Villardebelle - photos of trees in the Sahara
- saudiaramcoworld.com - A Cypress in the Sahara
- Conifers Around the World: Cupressus dupreziana - Tarout
- Cartoonist Michael Leunig's life as a guerrilla gardener on the curly and narrow "Talking Plants", Radio National, Australian Broadcasting Corporation