Pilosocereus aureispinus
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| ( Buining & Brederoo ) F. Knight |
Pilosocereus aureispinus is a species of plant in the genus Pilosocereus from the cactus family(Cactaceae). The specific epithet aureispinus means 'golden yellow prickly'.
description
Pilosocereus aureispinus grows shrubby, branches only at the base and reaches heights of up to 2 meters. The smooth, upright, dark green shoots are slightly woody and have a diameter of 5 to 9 centimeters. There are 20 to 24 ribs. The translucent, sometimes bristle-like thorns are golden to rust-colored. The 8 to 16 ascending central spines are 0.4 to 1.2 inches long. The 14 to 16 outspread radial spines are 4 to 12 millimeters long. A part of the shoots capable of flowering is hardly pronounced. The flowering areoles are scattered laterally on the shoots or form rings. White hair and gold-colored bristles up to 5 centimeters long arise from them.
The white, narrow tubular to funnel-shaped flowers are dark on the outside. They are up to 5 centimeters long and have a diameter of 2 to 2.2 centimeters. The spherical to depressed spherical fruits reach a diameter of 2 to 2.6 centimeters, tear open laterally and contain a white pulp.
Distribution, systematics and endangerment
Pilosocereus aureispinus is found in the Brazilian state of Bahia at altitudes of 450 to 550 meters. The first description as Coleocephalocereus aureispinus was published in 1974 by Albert Frederik Hendrik Buining and Arnold J. Brederoo (1917-1999). Friedrich Ritter placed them in the genus Pilosocereus in 1979 .
In the Red List of Threatened Species of IUCN from 2002 the species as "was Data Deficient (DD) " d. H. with insufficient data. In 2013 the species is classified as " Vulnerable (VU) ", i. H. classified as endangered.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 536 .
Individual evidence
- ↑ Cacti and other succulents . Volume 25, No. 4, pp. 73-75, 1974
- ↑ Cacti in South America: Results of my 20 years of field research . Volume 1, p. 83, 1979
- ↑ Pilosocereus aureispinus in the IUCN Red List of Threatened Species 2013.2. Posted by: Zappi, D., Machado, M., Taylor, NP & Braun, P., 2010. Retrieved January 3, 2014.
