Actinostrobus acuminatus

Actinostrobus acuminatus is a plant belonging to the family of the cypress family ( Cupressaceae ). It is native in the southwestern part of Western Australia.

Description

Can Actinostrobus acuminatus grows as evergreen, broad - conical shaped shrub of the stature heights of up to 3 meters reach. Are formed underground runners.

It also forms two different leaf forms. Young leaves are bright silver -green, needle-like, and are between 0.8 and 1.5 inches long. Mature leaves are dark green, scale-like, up to 1 inch long and are in Dreierwirteln arranged on the branches. Seedlings have two light green, pointed cotyledons ( cotyledons ) which are 15 to 18 millimeters long and 3 to 3.5 millimeters wide.

The male cones are at a about 4 millimeters long stem and are at a length of 4 to 6 millimeters and a thickness of 2-3 mm oval shaped. They consist of 20 tapered cone scales. Female pins are conically - shaped oval, with a length of 2.0 to 3.5 centimeters and a thickness of 1.5 to 2.5 centimeters. When ripe they are yellow through brown to bluish green colored brown. Often located at the base up to 1 mm long, needle-like leaves. Each pin consists of six tapered cone scales which bend back up to maturity and open the spigot so to release the seeds. The dark brown seeds are highly variable shaped with a length of 0.9 to 1.2 centimeters and a width from 0.9 to 1.3 centimeters and have a 2 to 5 millimeters wide wings.

Distribution and location

The natural range of Actinostrobus acuminatus is located in Western Australia. It extends there from Eneabba in the north to Perth in the south.

Actinostrobus acuminatus grows mainly in low-lying bush land and on sandy plains.

Use

System

The first description was in 1862 as Actinostrobus acuminatus 25 by Filippo Parlatore in index Seminum ( Florence ), page A synonym for Actinostrobus acuminatus Parl Callitris acuminata ( Parl ) F. Muell ..

Threats and conservation

Actinostrobus acuminatus is classified as "low risk" in the IUCN Red List. It is noted, however, that a re-examination of risk is necessary.

Swell

• Christopher J. Earle: Actinostrobus acuminatus. In: The Gymnosperm Database. www.conifers.org, November 23, 2012, accessed on January 4, 2013 ( English).