Coryphantha recurvata
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Coryphantha recurvata |
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| ( Engelm. ) Britton & Rose |
Coryphantha recurvata is a species of plant in the genus Coryphantha from the cactus family(Cactaceae). The specific epithet recurvata comes from Latin , means 'bent back' and refers to the arrangement of the thorns. English common names are "Golden-Chested Beehive Cactus", "Recurved Cory-Cactus" and "Recurved-Spine Pincushion".
description
Coryphantha recurvata often forms groups that consist of up to 50 shoots. The spherical to short cylindrical, greenish-blue shoots reach heights of 10 to 20 centimeters with a diameter of 7 to 15 centimeters. The shoots are often covered by the dense thorns. Pile or fiber roots are formed. The up to 10 millimeters long cylindrical to conical warts are rhomboid at their base. The axillae are bare. The one to rarely two central spines , which can also be missing, are initially yellow, later gray and have a reddish tip. They are curved downwards to protruding, slightly flattened and 1.2 to 1.7 inches long. The 17 to 20 comb-shaped, flattened radial spines, curved in a low arc, interlock. They are yellow and gray, have a darker tip and are up to 1.2 inches long.
The yellow flowers have a darker central stripe and reach lengths of 2.5 to 3.5 centimeters. The fruits are green.
Distribution, systematics and endangerment
Coryphantha recurvata is common in the United States in the state of Arizona and the Mexican states of Sonora and Durango .
The first description as Mammillaria recurvispina by George Engelmann was published in 1856. However, according to Article 53.1 of the International Code of Botanical Nomenclature , the name is invalid, as Willem Hendrik de Vriese had already named a species that way in 1839. When Engelmann found out about this, he changed the name of the species to Mammillaria recurvata . Nathaniel Lord Britton and Joseph Nelson Rose put the species in 1923 in the genus Coryphantha .
Further synonyms are Cactus recurvatus (Engelm.) Kuntze (1891), Cactus engelmannii Kuntze (1891) and Mammillaria nogalensis Runge ex K.Schum. (1898).
The following subspecies are distinguished:
- Coryphantha recurvata subsp. recurvata
- Coryphantha recurvata subsp. canatlanensis Dicht & A.Lüthy
In the Red List of Threatened Species of the IUCN , the species is listed as " Least Concern (LC) ". H. listed as not endangered. The subspecies was not assessed separately.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 158 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 200.
- ↑ George Engelmann: Cactaceae of the Boundary. In: United States and Mexican Boundary Survey, under the Order of Lietu. Col. WH Emory, Major First Cavalry, and United States Commissioner . Volume 2, Part 1, Cornelius Wendell, Washington 1859 ( online ).
- ^ WH de Vriese: Small Bijdragen tot de Natuurlijke family of the Cacteën . In: Tijdschrift voor Natuurlijke Geschiedenis en Physiologie . Volume 6, 1839, pp. 53-54, Plate 1, Figure 3 ( online ).
- ↑ George Engelmann: Additions to the Cactus-Flora of the Territory of the United States . In: Transactions of the Academy of Science of St. Louis . Volume 2, 1862, pp. 197-204 ( online ).
- ^ 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. 27-28 ( online ).
- ^ Coryphantha recurvata in the IUCN Red List of Threatened Species 2013.2. Posted by: Porter, JM, Van Devender, T. & Reina, AL, 2010. Retrieved December 14, 2013.
Web links
- Photos of Coryphantha recurvata