Pilosocereus oligolepis

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

Pilosocereus oligolepis is a species of plant in the genus Pilosocereus from the cactus family(Cactaceae). The specific epithet oligolepis means 'with little scales'.

description

Pilosocereus oligolepis grows shrubby, branched or unbranched at the base and reaches heights of 1 to 2 meters. The smooth, upright or slightly spread, gray to dark green shoots have a diameter of 3 to 5 centimeters. There are 4 to 5 ribs. The opaque thorns are dark brown. The 1 to 6 central spines, usually four, are protruding and 1 to 2 centimeters long. The 8 to 16 expanded to recurved radial spines are 2 to 10 millimeters long. A part of the shoots capable of flowering is not or not very well developed. Few to numerous white or brown hairs arise from the flowering areoles .

The slightly curved, funnel-shaped flowers are 6 to 7.5 centimeters long and 2.5 to 3 centimeters in diameter. The spherical fruits reach a diameter of 2.5 to 3 centimeters.

Distribution, systematics and endangerment

Pilosocereus oligolepis is distributed in the Brazilian state of Roraima and in the adjacent southwest of Guyana at altitudes of 150 to 550 meters on exposed rocks.

The first description as Cereus oligolepis was published in 1913 by Friedrich Karl Johann Vaupel (1876–1927). Ronald Stewart Byles and Gordon Douglas Rowley placed them in the genus Pilosocereus in 1957 . A synonym is Pseudopilocereus oligolepis (Vaupel) Buxb. The species is not well known.

In the Red List of Threatened Species of the IUCN , the species is called " Data Deficient (DD) ", i. H. with insufficient data.

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 543 .

Individual evidence

^ Note sheet of the Royal Botanical Garden and Museum in Berlin . Volume 5, number 50, Leipzig 1913, pp. 285-286 (online) .
^ Cactus and Succulent Journal of Great Britain . Volume 19, No. 3, London 1957, p. 67.
↑ Pilosocereus oligolepis in the IUCN Red List of Threatened Species 2013.2. Listed by: Zappi, D. & Taylor, NP, 2010. Retrieved January 5, 2014.

[1] Note sheet of the Royal Botanical Garden and Museum in Berlin . Volume 5, number 50, Leipzig 1913, pp. 285-286 (online) .

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

[3] Pilosocereus oligolepis in the IUCN Red List of Threatened Species 2013.2. Listed by: Zappi, D. & Taylor, NP, 2010. Retrieved January 5, 2014.