Echinocereus pulchellus
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Echinocereus pulchellus subsp. pulchellus |
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| Echinocereus pulchellus | ||||||||||||
| ( Mart. ) F. Seitz |
Echinocereus pulchellus is a species of plant in the genus Echinocereus from the cactus family(Cactaceae). The specific epithet pulchellus is derived from the diminutive of the Latin word pulcher and means 'pretty'.
description
Echinocereus pulchellus usually grows singly, shrinks during the dry season, and then retreats into the ground. The blue-green spherical shoots are 2 to 13 inches long and have the same diameter. Their roots are thickened. There are nine to 17 widely spaced ribs that are slightly humped. The three to fourteen spines are not clearly differentiated into central and radial spines. They are mostly radiating, yellowish to whitish and become darker with age. The thorns have a length of 0.1 to 1 centimeter.
The broad, funnel-shaped flowers are pink to magenta or white. They appear on the sides of the shoots, are 3 to 6 inches long and reach a diameter of up to 8 inches. The small, spherical fruits are almost dry when ripe and contain only a few seeds .
Distribution, systematics and endangerment
Echinocereus pulchellus is distributed in the Mexican states of Oaxaca , Hidalgo , Querétaro , San Luis Potosí , Zacatecas and Nuevo León on grassy places at altitudes of 1,800 to 2,400 meters. In the very large distribution area there are only a few populations in narrowly limited habitats.
The first description as Echinocactus pulchellus by Carl Friedrich Philipp von Martius was published in 1832. Francisco Seitz placed the species in the genus Echinocereus in 1870 . A nomenclature synonym is Cereus pulchellus (Mart.) Pfeiff. (1837). The following subspecies are distinguished:
- Echinocereus pulchellus subsp. pulchellus
- Echinocereus pulchellus subsp. acanthosetus (S.Arias & U.Guzmán) W.Blum
- Echinocereus pulchellus subsp. sharpii (NPTaylor) NPTaylor
- Echinocereus pulchellus subsp. weinbergii (Weing.) NPTaylor
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. 205 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 194.
- ↑ Michael Lange: Echinocereus pulchellus - its subspecies and forms . In: Cacti and other succulents . Volume 51, No. 4, 2000, pp. 88-92
- ↑ Dr. v. Martius: Description of some new nopaleas . In: Nova Acta Physico-Medica Academiae Caesareae Leopoldino-Carolinae Naturae Curiosorum Exhibentia Ephemerides sive Observationes Historias et Experimenta… Volume 16, number 1, 1832, pp. 342–343, plate 23, (online) .
- ↑ Catalogus Cactearum Cultarum . 1870, p. 11.
- ↑ L. Pfeiffer: Enumeratio Diagnostica Cactearum hucusque Cognitarum . Berlin 1837, p. 74 (online) .
- ↑ Echinocereus pulchellus in the IUCN Red List of Threatened Species 2013.2. Posted by: Arreola, H., Bárcenas Luna, R., Cházaro, M., Guadalupe Martínez, J., Sánchez, E. & Terrazas, T., 2009. Retrieved January 25, 2014.
