Pilosocereus aurisetus

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

Pilosocereus aurisetus is a species of plant in the genus Pilosocereus from the cactus family(Cactaceae). The specific epithet aurisetus means 'golden-bristled'.

description

Pilosocereus aurisetus grows shrubby, branches only at the base and reaches heights of 1 to 3 meters. The upright shoots are slightly woody and have a diameter of 2.8 to 7 centimeters. There are 10 to 17 ribs. The 17 to 25 thorns are translucent white to golden yellow. The ascending to protruding 5 to 9 central spines are 0.8 to 2.5 centimeters (rarely up to 3 centimeters) long. The 12 to 16 spread radial spines are 7 to 11 millimeters long. The flowering part of the shoots is very distinct. It is located on the side to the top of the shoots. The areoles there are richly covered with long hair and golden yellow bristles.

The funnel-shaped, white to whitish pink flowers are darker pink on the outside. They are 3.2 to 5 inches long and 3 to 4 inches in diameter. The depressed spherical fruits are 2 to 3 centimeters long, tear open in the middle and contain a white pulp.

Systematics, distribution and endangerment

Pilosocereus aurisetus is common in the Brazilian state of Minas Gerais .

The first description as Pilocereus aurisetus was published in 1933 by Erich Werdermann (1892-1959). Ronald Stewart Byles and Gordon Douglas Rowley placed them in the genus Pilosocereus in 1957 . A synonym is Pseudopilocereus aurisetus (Werderm.) Buxb.

There will be the two subspecies :

Pilosocereus aurisetus subsp. aurisetus
Pilosocereus aurisetus subsp. aurilanatus

distinguished.

The subspecies Pilosocereus aurisetus subsp. aurilanatus was in the Red List of Threatened Species of IUCN in 2002 as " Endangered , d (EN)". H. endangered, classified. After the list was revised in 2013, the species will be classified as " Least Concern (LC) ", i. H. listed as not endangered and the subspecies Pilosocereus aurisetus subsp. aurilanatus excluded from the list.

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 536 .

Individual evidence

↑ Brazil and its columnar cacti . P. 109, 1933
^ Cactus and Succulent Journal of Great Britain . Volume 19, No. 3, p. 66, London 1957
↑ Pilosocereus aurisetus in the IUCN Red List of Threatened Species 2013.2. Listed by: Zappi, D. & Taylor, NP, 2010. Retrieved January 3, 2014.