Austrocylindropuntia cylindrica
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Austrocylindropuntia cylindrica |
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| ( Lam. ) Backeb. |
Austrocylindropuntia cylindrica is a species of plant in the genus Austrocylindropuntia from the cactus family(Cactaceae). The specific epithet cylindrica is derived from the Latin word cylindricus for 'cylindrical' and refers to the shape of the shoots of the species.
description
Austrocylindropuntia cylindrica grows shrubby or tree-shaped, is loosely to densely branched and reaches heights of growth of up to 4 meters and more. The not fragile, dark green shoot sections appear laterally from older shoots. They are striking spiral rhomboid humped and up to 25 centimeters long and longer. Weak, inconspicuous glochids 1 to 2 millimeters in length arise from the areoles on them . The leaf rudiments are subpulate and up to 10 millimeters long. There are two to six (rarely up to eight) thorns . They are protruding, straight, round or slightly flattened and sometimes slightly downy-haired. Their length is about 1 centimeter, rarely up to 3 centimeters.
The red flowers are 5 to 7 inches long. The elongated pericarpel is covered with areoles at the base that carry glochids. Occasionally it is hairy. The ellipsoid to urn-shaped fruits are up to 9 centimeters long.
Distribution, systematics and endangerment
Austrocylindropuntia cylindrica is widespread in the highlands of central Ecuador and in the Peruvian region of Piura at altitudes of up to 3500 meters.
The first description as Cactus cylindricus by Jean-Baptiste de Lamarck was published in 1785. Curt Backeberg placed them in the genus Austrocylindropuntia in 1942 . Further nomenclature synonyms are Cereus cylindricus (Lam.) Haw. (1812), Opuntia cylindrica (Lam.) DC. (1828), Cylindropuntia cylindrica (Lam.) FMKnuth (1930) and Maihueniopsis cylindrica (Lam.) R. Kiesling (1998).
In the Red List of Threatened Species of IUCN is the species as " Near Threatened (NT)", d. H. listed as low risk.
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literature
- Edward F. Anderson : The Great Cactus Lexicon . With a foreword by Wilhelm Barthlott and an article by Roger Brown on cactus cultivation and care. Translated from English, supplemented and revised by Urs Eggli. Ulmer , Stuttgart 2005, ISBN 3-8001-4573-1 , p. 86 (English: The cactus family . Portland 2004. Translated by Urs Eggli ).
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 59.
- ^ Encyclopédie Méthodique: Botanique . Volume 1, Part 2, Paris 1785, p. 539 (online)
- ↑ Yearbook of the German Cactus Society . 1941, part 2, 1942, p. 12.
- ^ Austrocylindropuntia cylindrica in the IUCN Red List of Threatened Species 2013.2. Listed by: Loaiza, C., 2013. Retrieved May 17, 2014.
