Mammillaria coahuilensis
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Mammillaria coahuilensis subsp. albiarmata |
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| Mammillaria coahuilensis | ||||||||||||
| ( Boed. ) Moran |
Mammillaria coahuilensis is a species of plant in the genus Mammillaria inthe cactus family (Cactaceae). The specific epithet coahuilensis means 'from the area of Coahuila (N-Mexico)'.
description
Mammillaria coahuilensis grows individually with flattened, spherical, blue-green bodies, which are up to 5 centimeters high and up to 5 centimeters in diameter and are heavily horned at the base. The warts are triangular in cross section and without milky sap . The axillae are sparsely woolly. The thorns are finely haired. A central spine is straight, needle-like and is up to 0.6 inches long. It's white with a brown tip. The approximately 16 radial spines are thin, bristle-like, slightly leaf-like and colored white with a dark tip. They are up to 0.6 inches long.
The broad-funneled flowers are white with more or less pronounced pink central stripes. They grow up to 2 to 3 centimeters in diameter. The red fruits are club-shaped and contain dark brown seeds .
Distribution, systematics and endangerment
Mammillaria coahuilensis is common in the Mexican state of Coahuila .
It was first described as Porfiria coahuilensis in 1926 by Friedrich Bödeker . Reid Venable Moran introduced the species to Mammillaria in 1953 . The following subspecies are distinguished:
- Mammillaria coahuilensis subsp. coahuilensis
- Mammillaria coahuilensis subsp. albiarmata (Boed.) DRHunt
Mammillaria coahuilensis subsp. coahuilensis does not have such densely arranged thorns. The flowers are tinged with pink and have a diameter of 3 centimeters. Synonyms are Porfiria coahuilensis Boed. (1926), Mammillaria heyderi subsp. coahuilensis (Boed.) Lüthy (1995), Haagea schwarzii Fric (1926), Porfira schwarzii (Fric) Boed. (1927), Mammillaria schwarzii (Fric) Backeb. (1966, nom. Illeg. ICBN -Article 53.1) and Mammillaria schwarzii Buxb. (1961, nom. Invalid ICBN -Article 53.1).
Mammillaria coahuilensis subsp. albiarmata has dense thorns and the flowers are pure white with a diameter of only 2 centimeters. It was first described as Mammillaria albiarmata in 1936 by Friedrich Bödeker. David Richard Hunt introduced the species in 1998 as a subspecies to Mammillaria coahuilensis . Synonyms are Mammillaria albiarmata Boed. (1936), Mammillaria coahuilensis var. Albiarmata (Boed.) B. Hofmann (1989), Porfira schwarzii var. Albiflora Boed. (1926) and Mammillaria coahuilensis var. Albiflora (Boed.) Boom & Wouters (1963).
In the Red List of Threatened Species of IUCN is the species as " Endangered (EN) ," d. H. listed as endangered.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . 2nd Edition. Eugen Ulmer KG, Stuttgart 2011, ISBN 978-3-8001-5964-2 , pp. 375 .
- Curt Backeberg : Die Cactaceae: Handbuch der Kakteenkunde . 2nd Edition. tape V . Gustav Fischer Verlag, Stuttgart / New York 1984, ISBN 3-437-30384-8 , p. 3505 ff .
- Ulises Guzmán, Salvador Arias, Patricia Dávila: Catálogo de cactáceas mexicanas . Universidad Nacional Autónoma de México, Mexico City 2003, ISBN 970-9000-20-9 , pp. 119 .
Individual evidence
- ↑ Bödeker: Porfiria coahuilensis spec. Nov. In Zeitschrift für Sukkulentenkunde , vol. 2, 1926, p. 210
- ↑ Moran: Gentes Herbarum; Occasional Papers on the Kinds of Plants. (LH Bailey Hortorium, Cornell University) No. 8, 1953, p. 324
- ↑ Bödeker: Mammillaria albiarmata spec. Nov. In the Yearbook of the German Cactus Society , vol. 1, 1936, p. 67
- ↑ DR Hunt: Mammillaria Postscripts No. 7, 1998, p. 3
- ↑ Mammillaria coahuilensis in the IUCN Red List of Threatened Species 2013.2. Posted by: Fitz Maurice, B, Sotomayor, M., Fitz Maurice, WA, Hernández, HM & Smith, M., 2009. Retrieved December 27, 2013.
