Isolatocereus dumortieri
| Isolatocereus dumortieri | ||||||||||||
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Isolatocereus dumortieri |
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| Scientific name of the genus | ||||||||||||
| Isolatocereus | ||||||||||||
| ( Backeb. ) Backeb. | ||||||||||||
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| Isolatocereus dumortieri | ||||||||||||
| ( Scheidw. ) Backeb. |
Isolatocereus dumortieri is the only plant species of the monotypic genus Isolatocereus in the cactus family(Cactaceae). The botanical name of the genus is derived from the Italian verb isolato for 'isolated'. The specific epithet dumortieri honors the Belgian botanist Barthélemy Charles Joseph Dumortier . Common names are "Candelabro", "Órgano" and "Pitayo".
description
The very large, tree-like and candelabra-like Isolatocereus dumortieri reaches heights of growth of 5 to 15 meters and has a well-developed trunk of more than 1 meter in length. Its blue-green, upright, somewhat inwardly curved shoots have constrictions, are up to 10 meters long and reach a diameter of 5 to 15 centimeters. The 5 to 8 ribs are obtuse triangular and up to 2 centimeters high. The areoles flow together with age. The 1 to 4 central spines are yellowish white and up to 5 centimeters long. The yellowish white 6 to 9 radial spines, which get darker with age, are up to 1 centimeter long.
The odorless flowers arise from areoles near the shoot tip, which flower several times and occasionally form small crowns. They open during the night and stay open until noon the following day. The flowers are tubular to funnel-shaped, short, pale green to white and up to 2.5 to 3.5 centimeters long.
The obovate, edible fruits with the remnants of the flowers that fall off early remain green for a long time and later turn orange to red. They are 2.5 to 3.5 inches long and covered with small, red scales. The 1.5 millimeter large seeds are black.
Distribution, systematics and endangerment
Isolatocereus dumortieri is widespread in the Mexican states of Oaxaca , Hidalgo , Morelos , Guerrero , Puebla, and Michoacán . The genus was first described in 1942 by Curt Backeberg . Their only species was first described by Michael Joseph François Scheidweiler in 1837 as Cereus dumortieri .
Numerous synonyms exist through recombinations into different genres .
In the Red List of Threatened Species of the IUCN , the species is listed as " Least Concern (LC) ". H. listed as not endangered.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 347 .
Individual evidence
- ↑ Cactaceae. Yearbooks of the German Cactus Society V. Berlin 1942.
- ↑ Stenocereus dumortieri in the IUCN Red List of Threatened Species 2013.2. Posted by: Arias, S., Arreola, H., Bárcenas Luna, R., Cházaro, M., Guadalupe Martínez, J., Sánchez, E. & Terrazas, T., 2009. Retrieved January 25, 2014.
