Widdringtonia cedarbergensis
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| Widdringtonia cedarbergensis | ||||||||||||
| YES Marsh |
Widdringtonia cedarbergensis is a plant from the family of the cypress family (Cupressaceae). It isnativeto South Africa. The name has to be replaced by the older valid name Widdringtonia wallichii Endl. ex Carrière to be replaced.
description
Widdringtonia cedarbergensis grows as an evergreen tree that can reach heights of 5 to 7, in protected locations up to 20 meters. Older trees are usually curved and have a spread crown . The thin, reddish gray bark is fibrous and flakes off.
Young leaves are up to 20 millimeters long and 2 millimeters wide. Older leaves are up to 4 millimeters long.
The male cones reach a length of 1 to 2 millimeters. The spherical female cones are up to 2.5 centimeters thick. Each cone consists of four dark brown, woody cone scales that have a rough, warty surface. The cones of a tree can be in different stages of development at the same time. The seeds are egg-shaped and have a small wing.
Distribution and location
The natural range of Widdringtonia cedarbergensis is in the South African province of Western Cape . The species occurs there in the cedar mountains .
Widdringtonia cedarbergensis grows on mountain tops and on rocky outcrops . The species forms small, loose stands, but also grows as a single tree.
use
The light yellow to whitish wood of Widdringtonia cedarbergensis is easy to work with, finely sanded and is resistant to wood-boring insects. The doors, pews, and carved altar of the Anglican Church, as well as the wooden furnishings of the Clanwilliam Court , were made of this type of wood.
Systematics
It was first described as Widdringtonia cedarbergensis in 1966 by Judith Anne Marsh . Later, however, the older name Widdringtonia wallichii proved to be valid, which Élie-Abel Carrière gave the botanist Stephan Ladislaus Endlicher in his work Traité général des conifères ..., ed. 2: p. 62 (1867) attributed.
Hazard and protection
Widdringtonia cedarbergensis is classified as "Endangered" in the IUCN Red List . It is pointed out, however, that a new review of the hazard is necessary. As a result of logging and fires, there are now only five populations , the numbers of which were further reduced by a fire in 1998. Naturally occurring fires are named as the main risk, which are so common that natural regeneration is hardly possible. Furthermore, there are many mature trees in remote locations and their number is considered too few for natural regeneration. A reforestation program of the species has been initiated in the approximately 53 km² Cedar Reserve and cultivated seedlings are planted each year. A program to fight natural fires was also set up.
swell
- Christopher J. Earle: Widdringtonia cedarbergensis. In: The Gymnosperm Database. www.conifers.org, November 23, 2012, accessed February 23, 2013 .
Individual evidence
- ↑ a b Rafaël Govaerts (Ed.): Widdringtonia. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved March 22, 2019.
- ↑ a b c d e f Christopher J. Earle: Widdringtonia cedarbergensis. In: The Gymnosperm Database. www.conifers.org, November 23, 2012, accessed February 23, 2013 .
- ↑ In: Bothalia , Volume 9, Number 1, Page 125, 1966. ( PDF )
- ↑ Widdringtonia cedarbergensis in the endangered Red List species the IUCN 2012. Posted by: C. Hilton-Taylor, 1998. Accessed February 23, 2013.