Acanthocalycium thionanthum
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Acanthocalycium thionanthum |
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| Acanthocalycium thionanthum | ||||||||||||
| ( Speg. ) Backeb. |
Acanthocalycium thionanthum is a species of plant in the genus Acanthocalycium from the cactus family(Cactaceae). The specific epithet thionanthum is derived from the Greek words theion for 'sulfur' and anthos for 'blossom' and refers to the flower color of the species.
description
Acanthocalycium thionanthum usually grows individually with spherical to short cylindrical, dark green to green-gray shoots and reaches heights of up to 12 centimeters with a diameter of 10 centimeters. There are 9 to 15 round ribs that are little notched and tuberous . From the elliptical areoles arise awkward, gray thorns with a darker tip. There are 1 to 4 central spines, which can also be missing, as well as 5 to 10 radial spines.
The somewhat bell-shaped flowers are bright yellow to red or white. They have a length of up to 4.5 centimeters and the same diameter. Your pericarpel and the flower tube are covered with dark, pointed scales and brown to white hair and bristles. The spherical, hard-fleshed fruits tear open and reach a diameter of up to 1 centimeter.
Systematics and distribution
Acanthocalycium thionanthum is found in the Argentine provinces of Salta , Tucumán and Catamarca at altitudes of 1500 to 3000 meters.
The first description as Echinocactus thionanthus by Carlos Luis Spegazzini was published in 1905. Curt Backeberg placed the species in the genus Acanthocalycium in 1936 .
Further nomenclature synonyms are Lobivia thionantha (Speg.) Britton & Rose (1922) and Echinopsis thionantha (Speg.) Werderm. (1931). Synonyms are also among others Echinopsis chionantha (Speg.) Werderm. (1931) ≡ Acanthocalycium chionanthum (Speg.) Backeb. (1936).
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 68 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 239.
- ↑ Carlos Luis Spegazzini: Cactacearum Platensium Tentamen . In: Anales del Museo Nacional de Buenos Aires . 3rd episode, Volume 4, 1905, p. 499 (online) .
- ^ Curt Backeberg , Frederik Marcus Knuth : Cactus ABC. En haandbog for fagfolk and amatører . Copenhagen 1936, p. 227 .
