Mammillaria karwinskiana
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Mammillaria karwinskiana subsp. karvinskiana |
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| Mammillaria karwinskiana | ||||||||||||
| Mart. |
Mammillaria karwinskiana is a species of the genus Mammillaria in the cactus family(Cactaceae). The specific epithet honors the Bavarian natural scientist and plant collector Baron Wilhelm Friedrich von Karwinski (1799–1855).
description
Mammillaria karwinskiana grows singly, occasionally dividing dichotomously or sprouting at the base. The blue-green to dark-green, spherical to short cylindrical shoots are 7 to 10 centimeters high and reach a diameter that is just as large. The solid pyramidal warts contain milky sap . The axillae are covered with bristles. The central spines are completely absent or there is only one subpipe, white or yellowish, with a dark tip and a length of 5.5 centimeters. The 3 to 8 radial spines are sub-like, straight to slightly curved, reddish and become chalky over time. They are 0.4 to 3 inches long.
The funnel-shaped flowers are white with a purple central stripe. They grow up to 2.5 inches long and 1.5 inches in diameter. The bright red fruits contain brown seeds .
Distribution, systematics and endangerment
Mammillaria karwinskiana is common in the Mexican states of Oaxaca , Morelos , Puebla , Chiapas , Colima, and Michoacán .
It was first described in 1832 by Carl Friedrich Philipp von Martius .
Synonyms include Mammillaria fischeri Pfeiff. (1836), Mammillaria virens Scheidw. (1841), Mammillaria beiselii Diers (1979), Neomammillaria collinski Britton & Rose (1923), Mammillaria collinski (Britton & Rose) Orcutt (1926), Mammillaria praelii Muehlenpf. (1846), Mammillaria multiseta C. Ehrenb. (1849) and Mammillaria nejapensis R.T. Craig & EYDawson (1948).
The following subspecies are distinguished:
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Mammillaria karwinskiana subsp. beiselii (Diers) DRHunt :
The first description was in 1979 as Mammillaria beiselii by Lothar Diers. David Richard Hunt introduced the species in 1997 as a subspecies to Mammillaria karwinskiana . The subspecies has a central spine and 5 to 8 radial spines. -
Mammillaria karwinskiana subsp. collinsii (Britton & Rose) DRHunt :
The first description was in 1923 as Neomammillaria collinsii by Nathaniel Lord Britton and Joseph Nelson Rose . David Richard Hunt introduced the species in 1997 as a subspecies to Mammillaria karwinskiana . The subspecies has a central spine and 7 radial spines. -
Mammillaria karwinskiana subsp. karwinskiana :
The nominate form typically has no central spine and usually 6 radial spines. -
Mammillaria karwinskiana subsp. nejapensis (RTCraig & EYDawson) DRHunt :
The first description was in 1948 as Mammillaria nejapensis by Robert T. Craig and Elmer Yale Dawson . David Richard Hunt introduced the species in 1997 as a subspecies to Mammillaria karwinskiana . The subspecies has no central spine and 3 to 5 radial spines.
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. 389 .
- Ulises Guzmán: Catálogo de cactáceas mexicanas . Universidad National Autonoma de México, Mexico City 2007, ISBN 970-9000-20-9 , pp. 134 .
Individual evidence
- ↑ Carl Friedrich Förster : Handbuch der Cacteenkunde in its entirety, or the most successful culture information based on the latest experiences, as well as a detailed and precise description and corrected synonymy of all cacti that have become known up to now, and in general everything else only worth knowing in relation to this family of plants . Wöller, 1846, p. 223 ( online ).
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Birkhäuser 2004, ISBN 3-540-00489-0 , p. 125.
- ↑ 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. 335, (online)
- ↑ Mammillaria beiselii spec. nov. In: Cacti and other succulents . Vol. 30, 1979, p. 60.
- ↑ a b c D. R. Hunt, Mammillaria Postscripts . Volume 9, 1997, p. 11
- ^ NL Britton , JN Rose : The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family . tape IV . The Carnegie Institution of Washington, Washington 1923, p. 101 ( online ).
- ^ Allan Hancock Foundation . Publications. Occasional papers. Vol. 2, Los Angeles 1948, p. 57.
- ↑ Mammillaria karwinskiana in the IUCN Red List of Threatened Species 2013.2. Posted by: Hernández, HM & Gómez-Hinostrosa, C., 2009. Retrieved December 27, 2013.
