Echinocereus mapimiensis
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Echinocereus mapimiensis |
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| EFAnderson , WCHodgs. & P.Quirk |
Echinocereus mapimiensis is a species of plant in the genus Echinocereus from the cactus family(Cactaceae). The specific epithet mapimiensis refers to the occurrence of the species in the Mexican Mapimi desert .
description
Echinocereus mapimiensis usually grows in loose groups of up to 60 centimeters in diameter, which consist of up to 50 shoots . The blue-green, cylindrical, soft-fleshed, mostly upright shoots are occasionally overhanging with age and shrink considerably when dry. They are 4 to 30 centimeters long and have a diameter of 1.5 to 3.5 centimeters (rarely up to 8 centimeters). The shoots are hardly covered by the thorns. There are usually six blunt ribs that are low-humped. The white areoles on them are circular. The straight, needle-like, blackish or deep red thorns gray or become whitish with age. It is difficult to distinguish between central and radial spines. The two to four spreading central spines have lengths of 1.5 to 2.2 centimeters. The four to eight radial spines, which also spread, are 0.9 to 1.8 centimeters long.
The funnel-shaped flowers are brownish magenta in color. They appear on the sides of the shoots, are 3 to 4.5 centimeters (rarely up to 5.5 centimeters) long and reach 1.7 to 4 centimeters in diameter. Their bracts are edged cream. The green, spherical to egg-shaped fruits are 1.5 to 2.1 centimeters long and have a diameter of 1.2 to 1.5 centimeters.
Distribution, systematics and endangerment
Echinocereus mapimiensis is common in the Mexican state of Coahuila in the Mapimi desert under bushes on loamy-sandy alluvial soil.
The first description by Edward Frederick Anderson , Wendy C. Hodgson and Patrick Quirk was published in 1998.
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. 199-200 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 147.
- ↑ EF Anderson, W. Hodgson, P. Quirk: Echinocereus mapimiensis: a new species from Coahuila, Mexico . In: Cactus and Succulent Journal . Volume 70, Number 6, Cactus and Succulent Society of America, 1998, pp. 284-285.
- ↑ Echinocereus mapimiensis in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Fitz Maurice, B, Sotomayor, M., Fitz Maurice, WA, Hernández, HM & Smith, M., 2009. Retrieved January 25, 2014.
further reading
- S. Breckwoldt, K. Breckwoldt: Echinocereus mapimiensis EFAnderson, W. Hodgson & P. Quirk. Observations at the site as a supplement to the first description . In: The Echinocereenfreund . Volume 14, Number 1, 2001, pp. 24-27.
- S. Breckwoldt, K. Breckwoldt: Echinocereus mapimiensis from the Bolsón de Mapimí, Mexico . In: Cacti and other succulents . Volume 54, Number 4, 2003, pp. 103-105.
