Pilosocereus royenii

Pilosocereus royenii
	Pilosocereus royenii
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Cereeae
Genre :	Pilosocereus
Type :	Pilosocereus royenii
Scientific name
	Pilosocereus royenii
	( L. ) Byles & GDRowley

Pilosocereus royenii is a species of plant in the genus Pilosocereus from the cactus family(Cactaceae).

description

Pilosocereus royenii grows tree-shaped with an often clearly defined trunk and with upright or sometimes ascending, strong, blue-green shoots 7 to 9 centimeters in diameter that are branched at the base or above and reach heights of 2 to 8 meters. There are 6 to 11 ribs. The yellowish to reddish thorns are designed differently. The 1 to 6 central spines are 3.2 to 6 inches long. The approximately 9 radial spines are 1.9 to 2.6 inches long. The flowering part of the shoots is not clearly defined. It comprises 1 to 3 ribs at the tip or on the sides, from whose areoles long, white hairs arise.

The more or less pink flowers are up to 5 centimeters long and 3 to 4 centimeters in diameter. The depressed spherical fruits contain a white pulp.

Distribution, systematics and endangerment

Pilosocereus royenii is found on the Mexican Yucatán Peninsula , the Bahamas , the Dominican Republic , Jamaica , Puerto Rico , Tobago , the US Virgin Islands, and the Lesser Antilles . It is one of the most common species of cactus in the Caribbean .

The first description as Cactus royenii was published in 1753 by Carl von Linné in Species Plantarum . Ronald Stewart Byles and Gordon Douglas Rowley placed them in the genus Pilosocereus in 1957 . A synonym is Cephalocereus royeni (L.) Britton & Rose .

In the Red List of Threatened Species of the IUCN , the species is listed as " Least Concern (LC) ". H. listed as not endangered.

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 545-546 .

Individual evidence

↑ Species Plantarum . Volume 1, 1753, p. 467, (online)
^ Cactus and Succulent Journal of Great Britain . Volume 19, No. 3, London 1957, p. 67.
↑ Pilosocereus royenii in the IUCN Red List of Threatened Species 2013.2. Listed by: Taylor, NP, 2011. Retrieved January 5, 2014.

Web links

Commons : Pilosocereus royenii - collection of images, videos and audio files

[1] Species Plantarum . Volume 1, 1753, p. 467, (online)

[2] Cactus and Succulent Journal of Great Britain . Volume 19, No. 3, London 1957, p. 67.

[3] Pilosocereus royenii in the IUCN Red List of Threatened Species 2013.2. Listed by: Taylor, NP, 2011. Retrieved January 5, 2014.