Pachycereus gatesii
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Pachycereus gatesii is a species of plant in the genus Pachycereus in the cactus family(Cactaceae).
description
Pachycereus gatesii grows shrubby, is richly branched and often forms groups with heights of growth of up to 2 meters and diameters of 3 meters. The initially outward to upwardly curved, later upright, light olive-green shoots have a diameter of 5 to 8 centimeters. There are ten to 15 sharp-edged ribs . The thorns cannot be divided into central and radial spines and are different in the lower and upper part of the shoot. The eleven to fifteen thorns emerging from the lower areoles are expanded at their base and are 5 to 15 millimeters long. From the upper areoles or the pseudocephalium , 15 to 20 thin, twisted, bristle-like thorns with a length of up to 6 centimeters appear.
The funnel-shaped, coral-pink flowers are up to 3 centimeters long and have the same diameter. Your pericarpel and the tube of flowers are scaled. The spherical, red fruits with wide, bare scales reach a diameter of 2.5 centimeters and contain red pulp . They tear open irregularly.
Distribution, systematics and endangerment
Pachycereus gatesii is distributed in the Mexican state of Baja California Sur between Todos Santos and Isla Santa Margarita at altitudes of 0 to 100 m. It was first described as Lophocereus gatesii in 1934 by Marcus Eugene Jones . David Richard Hunt placed them in the genus Pachycereus in 1991 .
In the Red List of Threatened Species of IUCN is the species as " Vulnerable (VU) ", d. H. listed as endangered.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 489 .
Individual evidence
- ^ Cactus and Succulent Journal . Volume 5, Los Angeles 1934, p. 546.
- ↑ Bradleya . Volume 9, 1991, p. 89.
- ↑ Pachycereus gatesii in the IUCN Red List of Threatened Species 2013.2. Posted by: Burquez Montijo, A. & Felger, RS, 2010. Retrieved January 25, 2014.