Cleistocactus samaipatanus
| Cleistocactus samaipatanus | ||||||||||||
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Cleistocactus samaipatanus |
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| Cleistocactus samaipatanus | ||||||||||||
| ( Cárdenas ) DRHunt |
Cleistocactus samaipatanus is a species of plant in the genus Cleistocactus from the cactus family(Cactaceae). The epithet of the species refers to the locality Samaipata in Bolivia .
description
Cleistocactus samaipatanus forms branched groups from the base with some upright trunks and reaches heights of growth of up to 1.50 meters with diameters of 3.5 to 4 centimeters. The low, transversely furrowed 14 to 16 ribs are 2 millimeters high and 7 millimeters wide. The areoles , which are initially brownish tomentose at the top, sit on them at a distance of 3 to 4 millimeters . From them radiate 13 to 22 thin, uneven thorns 4 to 30 millimeters in length. These are whitish-ash-colored, pale yellowish or brownish.
The 4 centimeter long flowers are very crooked and have narrow, looser and recurved, pointed sepals that are purple-red. The corolla is slightly compressed. The linear petals are blood red and are up to 15 millimeters long. There is a wool ring at the bottom of the tube. The stamens are in two rows and have dark purple anthers . The stylus does not protrude.
The small, spherical fruits are 9 to 11 millimeters long and 7 to 9 millimeters wide. They are densely white and brown wooly with a clinging remnant of flowers and contain tiny, blackish-brown or black seeds .
forma cristata
forma cristata
Distribution, systematics and endangerment
Cleistocactus samaipatanus is widespread in the lowlands of the Bolivian Department of Santa Cruz at altitudes of 1000 to 2000 meters.
The first description was made in 1951 by Martín Cárdenas under the name Bolivicereus samaipatanus . David Richard Hunt placed the species in the genus Cleistocactus in 1987 .
In the Red List of Threatened Species of the IUCN , the species is listed as " Least Concern (LC) ". H. listed as not endangered.
proof
Individual evidence
- ^ Cactus and Succulent Journal . Volume 23, p. 91, Los Angeles 1951
- ↑ Bradleya . Volume 5, p. 92, 1987
- ↑ Cleistocactus samaipatanus in the IUCN Red List of Threatened Species 2013.2. Posted by: Lowry, M., 2010. Retrieved February 22, 2014.
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 124 .
- Curt Backeberg : Die Cactaceae: Handbuch der Kakteenkunde . 2nd Edition. tape II . Gustav Fischer Verlag, Stuttgart New York 1983, ISBN 3-437-30381-3 , p. 973 .
- Walther Haage : cacti from A to Z . 3. Edition. Quelle & Meyer Verlag, Heidelberg 1986, ISBN 3-494-01142-7 , p. 535 .
