Pilosocereus quadricentralis

Pilosocereus quadricentralis
	Pilosocereus quadricentralis
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Cereeae
Genre :	Pilosocereus
Type :	Pilosocereus quadricentralis
Scientific name
	Pilosocereus quadricentralis
	( EYDawson ) Backeb.

Pilosocereus quadricentralis is a species of plant in the genus Pilosocereus from the cactus family(Cactaceae). The specific epithet quadricentralis means 'with four central spines'.

description

Pilosocereus quadricentralis grows tree-shaped with a distinct trunk, branches well above the base and reaches heights of growth of up to 5 meters. The upright, glaucous green shoots have a diameter of 7 to 8 centimeters. There are 8 ribs. The thorns, which are thickened like onions at the base, are initially brownish red and later gray. The 4 spreading central spines are 2 to 3.5 centimeters long. The 11 to 13 splaying radial spines are 10 to 20 millimeters long. The flowering part of the shoots is clearly defined and is located to the side or near the tip. The areoles there are rich in white wool.

The flowers are "large" and not further described. The spherical fruits have a diameter of up to 4 centimeters.

Distribution, systematics and endangerment

Pilosocereus quadricentralis is common in the Mexican states of Oaxaca and Chiapas . The first description as Cephalocereus quadricentralis was published in 1948 by Elmer Yale Dawson (1918-1966). Curt Backeberg placed them in the genus Pilosocereus in 1960 .

In the Red List of Threatened Species of IUCN is the species as " Endangered (EN) ," d. H. listed as endangered.

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 545 .

Individual evidence

^ Allan Hancock Foundation. Publications. Occasional papers . No. 1, Los Angeles 1948, p. 14.
↑ The Cactaceae: Handbook of the cactus science . Volume 4, 1960, p. 2437.
↑ Pilosocereus quadricentralis in the IUCN Red List of Threatened Species 2013.2. Posted by: Arreola, H. & Terrazas, T., 2009. Retrieved January 5, 2014.

Web links

Commons : Pilosocereus quadricentralis - Collection of images, videos and audio files

[1] Allan Hancock Foundation. Publications. Occasional papers . No. 1, Los Angeles 1948, p. 14.

[2] The Cactaceae: Handbook of the cactus science . Volume 4, 1960, p. 2437.

[3] Pilosocereus quadricentralis in the IUCN Red List of Threatened Species 2013.2. Posted by: Arreola, H. & Terrazas, T., 2009. Retrieved January 5, 2014.