Mammillaria decipiens
| Mammillaria decipiens | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mammillaria decipiens subsp. camptotricha |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Mammillaria decipiens | ||||||||||||
| Scheidw. |
Mammillaria decipiens is a species of the genus Mammillaria in the cactus family(Cactaceae). The specific epithet decipiens means 'deceptive, misleading'.
description
Mammillaria decipiens forms dense cushions. The spherical to club-shaped, deep green shoots are up to 10 centimeters high and 4 to 7 centimeters in diameter. The soft, fleshy, cylindrically blunt-shaped warts have no milky sap . The axillae are covered with sparse wool and a few bristles. The 1 to 2 brown central spines are slender, straight, needle-like and are 1.8 to 2.7 inches long. Sometimes they are completely absent. The 3 to 11 radial spines are white, sometimes pointed brown, slender and needle-like; sometimes bristle-like. They become 0.7 to 3 inches long.
The broad, funnel-shaped flowers are white and fragrant. They are 1.5 to 1.8 inches long. The cylindrically shaped fruits are green with a reddish tinge. They contain light brown seeds .
Distribution, systematics and endangerment
Mammillaria decipiens is common in the Mexican states of San Luis Potosí , Guanajuato and Querétaro .
It was first described in 1838 by Michael Joseph François Scheidweiler (1799–1861).
The following subspecies are distinguished:
-
Mammillaria decipiens subsp. albescens (crucible) DRHunt :
It was first described in 1933 as Mammillaria albescens by Ernst Tiegel (1879–1936). David Richard Hunt introduced the species in 1997 as a subspecies to Mammillaria decipiens . The subspecies always has 3 to 5 radial spines that are straight and white. The following species and varieties are synonymous : Mammillaria albescens Tiegel (1933), Dolichothele albescens (Tiegel) Backeb. (1951), Pseudomammillaria albescens (crucible) Buxb. (1951), Mammillaria camptotricha var. Albescens (jar) Kuhn (1982 nom. Inval. ICBN article 33.3), Mammillaria decipiens var. Albescens (jar) Repp. (1987) and Krainzia decipiens var. Albescens (Tiegel) Doweld (2000). -
Mammillaria decipiens subsp. camptotricha (Dams) DRHunt :
It was first described in 1905 as Mammillaria camptotricha by Erich Dams . David Richard Hunt introduced the species in 1997 as a subspecies to Mammillaria decipiens . The subspecies has 4 to 5 radial spines that are bristle-like and up to 3 inches long. Synonyms are the following species described: Mammillaria camptotricha Dams (1905), Dolichothele camptotricha (Dams) Tiegel (1935), Pseudomammillaria camptotricha (Dams) Buxb. (1951) and Krainzia decipiens subsp. camptotricha (Dams) Doweld (2000). -
Mammillaria decipiens subsp. decipiens :
The nominate form has 5 to 11 radial spines, which are usually rather whitish and up to 2 centimeters long.
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. 378 .
- Alwin Berger : Cacti - instructions for culture and knowledge of the most important introduced species . Eugen Ulmer, Stuttgart 1929, p. 291 .
- Ulises Guzmán: Catálogo de cactáceas mexicanas . Universidad National Autonoma de México, Mexico City 2007, ISBN 970-9000-20-9 , pp. 121 .
Individual evidence
- ^ Bulletins de l'Academie Royale des Sciences et des Belles-Lettres de Bruxelles . Jg. 5, 1838, p. 496, (online) .
- ^ Tiegel: Möller's Deutsche Gärtner-Zeitung . Vol. 48, 1933, p. 260.
- ^ A b D. R. Hunt: Mammillaria Postscripts . Volume 6, 1997, p. 7.
- ↑ E. Dams: Mamillaria camptotricha . In: The garden world . Vol. 10, 1905, p. 14.
- ↑ Mammillaria decipiens in the IUCN Red List of Threatened Species 2013.2. Posted by: Sánchez, E., Guadalupe Martínez, J. & Bárcenas Luna, R., 2009. Retrieved December 26, 2013.
