Pachycereus militaris

Pachycereus militaris
	Pachycereus militaris ; Pseudocephalium with buds and flower
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Pachycereeae
Genre :	Pachycereus
Type :	Pachycereus militaris
Scientific name
	Pachycereus militaris
	( Audot ) DRHunt

Pachycereus militaris is a species of the genus Pachycereus in the cactus family(Cactaceae). A common name is "Grenadier's Cap". The specific epithet militaris means 'warlike, strongly reinforced, spiked'.

description

Pachycereus militaris grows like a tree with greyish green, initially individual columnar shoots that later branch out. It reaches heights of growth of 12 to 15 meters and a crown diameter of up to 5 meters. On the 11 to 14 ribs seated areolae are close together and are covered with a short wool and white woolly hair. 3 to 4 protruding, yellowish to brownish central spines arise from the areoles, one of which is often over 10 centimeters long. The 10 to 12 radial spines are flexible, bristle-like and 1.5 to 4 inches long. A cap-shaped pseudocephalium made of yellowish-brown wool develops at the shoot tips , which is up to 30 centimeters long and up to 20 centimeters in diameter.

The flowers appear laterally from the pseudocephalium and open at night. They are reddish to cream-colored, 5 centimeters long and reach a diameter of 3.5 to 4 centimeters. Your pericarpel and the flower tube are covered with small scales, tufts of wool and bristles. The elongated fruits are fleshy and dry when ripe. They are covered in scales, bristles, and long tufts of woolly hair.

Distribution, systematics and endangerment

Pachycereus militaris is common in the Mexican states of Guerrero , Jalisco , Michoacán and Colima .

It was first described as Cereus militaris in 1845 by N. Audot . David Richard Hunt placed them in the genus Pachycereus in 1987 . Synonyms are Mitrocereus militaris (Audot) F.Buxbaum , Backebergia militaris (Audot) Sánchez-Mej. and Cephalocereus militaris (Audot) HEMoore .

Pachycereus militaris is listed in Appendix I of the Washington Convention on Endangered Species . In the Red List of Threatened Species of IUCN is the species as " Vulnerable (VU) ", d. H. listed as endangered.

proof

Individual evidence

^ Revue Horticole; résumé de tout ce qui parait d'intéressant en jardinage . 2nd series, Volume 4, Paris 1845, p. 307.
↑ Bradleya . Volume 5, 1987, p. 93.
↑ Pachycereus militaris in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Terrazas, T., Cházaro, M. & Arreola, H., 2009. Retrieved January 25, 2014.

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 491-492 .

Web links

Commons : Pachycereus militaris - collection of images, videos and audio files

[1] Revue Horticole; résumé de tout ce qui parait d'intéressant en jardinage . 2nd series, Volume 4, Paris 1845, p. 307.

[2] Bradleya . Volume 5, 1987, p. 93.

[3] Pachycereus militaris in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Terrazas, T., Cházaro, M. & Arreola, H., 2009. Retrieved January 25, 2014.