Cumulopuntia rossiana
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Cumulopuntia rossiana |
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| ( Heinrich & Backeb. ) F.Ritter |
Cumulopuntia rossiana is a species of plant in the genus Cumulopuntia fromthe cactus family (Cactaceae). The specific epithet rossiana honors the German gardener and owner of a cactus nursery Georg Ross (1887–1963) from Bad Krozingen .
description
Cumulopuntia rossiana forms compact, small pads. The very short, egg-shaped, gray-green shoot sections are up to 2 centimeters long. On them there are sharply delineated polygonal cusps. The ten to 15 areoles are mostly on the upper part of the shoot sections. They are narrow, elongated, white and only one to three thorns arise from their upper end . Occasionally, up to six thorns are present or absent entirely. The whitish to brownish thorns are uneven, strong, sub-like, sometimes flattened, bent downwards at the base and up to 1.5 centimeters long.
The yellow, orange, brownish-red or red flowers reach lengths of up to 4 centimeters. The upside-down conical pericarpel is set along the edge with areoles from which glochids and occasionally a few small thorns arise. The barrel-shaped fruits are wider than long and covered with long glochids.
Distribution, systematics and endangerment
Cumulopuntia rossiana is widespread in the Bolivian departments of Chuquisaca , Tarija and Potosí as well as in the Argentine province of Jujuy at altitudes of 3000 to 4000 meters.
It was first described as Tephrocactus pentlandii var. Rossianus in 1953 by Walter Heinrich and Curt Backeberg . Friedrich Ritter placed the species in the genus Cumulopuntia in 1980 .
Nomenclatory synonyms are Opuntia pentlandii var. Rossiana (Heinrich & Backeb.) GDRowley (1958), Opuntia hypogaea f. rossiana (Heinrich & Backeb.) Krainz (1967) and Opuntia rossiana (Heinrich & Backeb.) DRHunt (1997).
In the Red List of Threatened Species of the IUCN , the species is listed as " Least Concern (LC) ". H. listed as not endangered. The development of the populations is considered stable.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 164-165 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 205.
- ↑ Cactus . Number 38, Paris 1953, p. 250.
- ↑ Cacti in South America. Results of my 20 years of field research . Volume 2: Argentina / Bolivia. Friedrich Ritter Selbstverlag, Spangenberg 1980, pp. 486–488.
- ↑ Cumulopuntia rossiana in the IUCN Red List of Threatened Species 2014.1. Posted by: Ortega-Baes, P. & Lowry, M., 2013. Retrieved June 12, 2014.
