Callitris roei

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Callitris roei
Systematics
Class : Coniferopsida
Order : Conifers (Coniferales)
Family : Cypress family (Cupressaceae)
Subfamily : Callitroideae
Genre : Ornamental cypress ( Callitris )
Type : Callitris roei
Scientific name
Callitris roei
( Endl. ) F.Muell

Callitris roei is a plant from the family of the cypress family (Cupressaceae). It isnative tosouthwestern Western Australia .

description

Callitris roei grows as an evergreen shrub or small tree that can reach heights of up to five meters. The stiff branches go upright from the trunk and have curved branches.

The green to light blue-green leaves are three to five millimeters long. Her back is keeled.

The male cones stand individually on the branches and are egg-shaped with a length of up to three millimeters. The spherical to flattened-spherical, female cones stand together individually or in groups, have a short, stiff stem and are up to two centimeters thick. Each cone consists of six thick cone scales and usually carries six seeds. After ripening, they remain on the branches for several years before they release the seeds and fall off. The chestnut-brown seeds have one or two irregularly shaped wings, the larger of which can be about four millimeters wide.

Distribution and location

The natural, disjoint range of Callitris roei is in the southwestern part of the Australian state of Western Australia . It extends from Bolgart in the north to the Stirling Range in the south and Mount Ragged in the east.

Callitris roei is classified as "endangered" in the IUCN Red List . It is pointed out, however, that a new review of the hazard is necessary. The main reason given is logging.

Systematics

It was first described as Frenela roei in 1847 by Stephan Ladislaus Endlicher in Synopsis Coniferarum , page 36. Ferdinand von Mueller transferred the species to the genus Callitris in 1883 in the Systematic Census of Australian Plants .

swell

  • Christopher J. Earle: Callitris roei. In: The Gymnosperm Database. www.conifers.org, November 25, 2012, accessed February 17, 2013 (English).
  • Callitris roei. In: Flora of Australia Online. www.anbg.gov.au, accessed on February 17, 2013 (English).

Individual evidence

  1. ↑ a b c d Christopher J. Earle: Callitris roei. In: The Gymnosperm Database. www.conifers.org, November 25, 2012, accessed February 17, 2013 (English).
  2. ↑ a b c d Callitris roei. In: Flora of Australia Online. www.anbg.gov.au, accessed on February 17, 2013 (English).
  3. ↑ Callitris roei in the endangered Red List species the IUCN 2012. Posted by: Conifer Specialist Group, 1998. Accessed February 17, 2013.
  4. ↑ Callitris roei. In: The International Plant Names Index. www.ipni.org, accessed February 17, 2013 (English).