Mammillaria polythele
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Mammillaria polythele subsp. polythele |
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| Mammillaria polythele | ||||||||||||
| Mart. |
Mammillaria polythele is a species of the genus Mammillaria in the cactus family(Cactaceae). The specific epithet polythele means 'many-waxy'.
description
Mammillaria polythele grows individually with a cylindrical, mostly upright and sometimes prostrate body. The blue-green shoots are up to 60 centimeters high with a diameter of 5 to 15 centimeters. The warts are conspicuous, spherical-conical. They carry plenty of milky juice . The axillae are woolly. Central spines are completely absent. The radial spines are very variable. In the youth stage there are only two at first, directed either upwards or downwards. Later three to four or three to eight radial spines of different lengths. They are light to dark brown, sometimes reddish brown and up to 2.5 centimeters long.
The flowers are pink to pinkish purple and up to 1 centimeter long. The club fruits are red. They contain dark brown seeds .
Distribution, systematics and endangerment
Mammillaria polythele is common in the Mexican states of Hidalgo , Guanajuato and Querétaro .
It was first described in 1832 by Carl Friedrich Philipp von Martius . Synonyms of Mammillaria polythele Mart. are Mammillaria columnaris Mart. (1832), Mammillaria quadrispina Mart. (1832), Mammillaria affinis DC (1834), Mammillaria multimamma F.M. Knuth ex Backeb. & FMKnuth (1936), Mammillaria kelleriana Schmoll ex RTCraig , Mammillaria subdurispina Backeb. (1949), Mammillaria galeotti Scheidw. (1837), Mammillaria ingens Backeb. (1942), Mammillaria tetracantha Salm-Dyck ex Pfeiff. (1837), Mammillaria kewensis Salm-Dyck (1850), Mammillaria hidalgensis J.A. Purp. (1907), Neomammillaria hoffmanniana crucible (1934), Mammillaria neophaeacantha Schwarz ex Backeb. (1949) and Mammillaria xochipilli Repp. (1987).
The following subspecies are distinguished:
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Mammillaria polythele subsp. durispina (Boed.) DRHunt :
It was first described in 1928 as Mammillaria durispina by Friedrich Bödeker . David Richard Hunt introduced the species in 1997 as a subspecies to Mammillaria polythele . The shoots of the subspecies are usually 5 to 6 centimeters in diameter. The 6 to 8 radial spines radiate and are of different lengths up to 1.5 centimeters. -
Mammillaria polythele subsp. obconella (Scheidw ..) DRHunt :
The first description was in 1837 as Mammillaria obconella by Michel Joseph François Scheidweiler (1799–1861). David Richard Hunt introduced the species in 1997 as a subspecies to Mammillaria polythele . The shoots of the subspecies are usually 15 centimeters in diameter. The 4 radial spines are unequal and arranged crosswise. -
Mammillaria polythele subsp. polythele :
The nominate form has shoots with a diameter of 8 to 10 centimeters. Radial spines at first only two, later three to four.
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 . 2nd Edition. Eugen Ulmer KG, Stuttgart 2011, ISBN 978-3-8001-5964-2 , pp. 403 .
- Ulises Guzmán, Salvador Arias, Patricia Dávila: Catálogo de cactáceas mexicanas . Universidad Nacional Autónoma de México, Mexico City 2003, ISBN 970-9000-20-9 , pp. 151 .
Individual evidence
- ↑ 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, p. 328. (online)
- ↑ F. Bödeker: Mammillaria durispina spec. nov. In: Journal of Succulents . Vol. 3, Berlin 1928, p. 342.
- ^ A b D. R. Hunt, Mammillaria Postscripts . Volume 6, 1997, p. 7.
- ↑ L'horticulteur belge, journal des jardiniers et amateurs . Vol. 4, 1837, p. 93 (online) .
- ↑ Mammillaria polythele in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Gómez-Hinostrosa, C., Sánchez, E., Bárcenas Luna, R. & Guadalupe Martínez, J., 2009. Retrieved December 27, 2013.
