Echinopsis rhodotricha
| Echinopsis rhodotricha | ||||||||||||
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Echinopsis rhodotricha |
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| Scientific name | ||||||||||||
| Echinopsis rhodotricha | ||||||||||||
| K. Schum. |
Echinopsis rhodotricha is a species of the genus Echinopsis in the cactus family(Cactaceae). The specific epithet rhodotricha is derived from the Greek words rhodos for 'rose red' and trichos for 'hair' and refers to the hair on the flower tube.
description
Echinopsis rhodotricha usually grows in groups with upright or ascending, cylindrical, cloudy green shoots that reach heights of 30 to 80 centimeters with a diameter of up to 12 centimeters. There are eight to 18 low ribs that are somewhat wavy. The areoles on it are 1.5 to 2.5 centimeters apart. Yellowish thorns with a brown tip arise from them . The single central spine, which can also be missing, is slightly curved upwards and up to 2 centimeters long. The expanded and slightly curved four to eight radial spines are up to 2 inches long.
The funnel-shaped white flowers open at night. They become up to 15 centimeters long.
Distribution, systematics and endangerment
Echinopsis rhodotricha is distributed in the Brazilian state of Mato Grosso do Sul , in Paraguay and in northeast Argentina at altitudes of up to 500 meters.
The first description by Karl Moritz Schumann was published in 1900.
Subspecies
There are two subspecies :
- Echinopsis rhodotricha subsp. rhodotricha
- Echinopsis rhodotricha subsp. chacoana (Schütz) PJBraun & Esteves
Echinopsis rhodotricha subsp. rhodotricha
The subspecies is distributed in Paraguay and the Argentine provinces of Chaco , Formosa , Corrientes , Entre Ríos , Santiago del Estero and Santa Fe in the deep layers of the Chaco vegetation . Synonyms are Echinocactus forbesii clay. (1843), Echinopsis forbesii (clay.) A.Dietr. (1849); Echinopsis rhodotricha var. Roseiflora K.Schum. (1903) and Echinopsis rhodotricha var. Brevispina F. Ritter (1979).
Echinopsis rhodotricha subsp. chacoana
Echinopsis rhodotricha subsp. chacoana has twelve to 18 ribs and seven to eight radial spines and is widespread in Paraguay in the Chaco vegetation. The first description as Echinopsis chacoana by Bohumil Schütz was published in 1949. Pierre Josef Braun and Eddie Esteves Pereira presented the species as a subspecies to Echinopsis rhodotricha in 1995 . A nomenclature synonym is Echinopsis rhodotricha var. Chacoana (Schütz) F. Ritter (1979). Further synonyms are Echinopsis chacoana var. Spinosior F.Ritter (1965) and Echinopsis rhodotricha var. Spinosior (F.Ritter) F.Ritter (1979).
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 . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 241 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 203.
- ↑ Braun, PJ (2017): The cacti native to Mato Grosso do Sul. - cact. and. Sukk. 68 (3): 65-70.
- ↑ Braun, PJ (2017): An annotated list of species of the Cactaceae from Mato Grosso do Sul: Kugelkakteen. - cact. and. Sukk. 68 (6): 149-156.
- ↑ K. Schumann: The Cactaceae of the Republic of Paraguay . In: Monthly for cactus science . Volume 10, Number 10, 1900, pp. 147-148 ( online ).
- ^ In: Wilhelm Gerhard Walpers: Repertorium Botanices Systematicae . Volume 2, Friedrich Hofmeister, Leipzig 1843, p. 319 ( online )
- ↑ Albert Dietrich: Description of the Echinopsis Forbesii hoard. angl. and the flowers of Echinocactus Monvillii Lemaire . In: General garden newspaper . Volume 17, Number 25, June 23, 1849, pp. 193-194 ( online ).
- ↑ In: Emile Hassler, Robert Chodat: Plantae Hasslerianae, soit énumération des plantes recoltées au Paraguay par le Dr. Emile Hassler D'Aarau (Suisse) de 1885 a 1902 . In: Bulletin de l'Herbier Boissier . 2nd episode, Volume 3, 1903, p. 251 ( online) .
- ^ A b Friedrich Ritter: Cacti in South America. Results of my 20 years of field research . Volume 1: Brazil / Uruguay / Paraguay. Friedrich Ritter Selbstverlag, Spangenberg 1979, p. 263.
- ↑ Kaktusarske Listy . Issue 1, 1949.
- ^ Pierre J. Braun, Eddie Esteves Pereira: Voor cactussen uit Brazilie, Bolivia en Paraguay . In: Succulenta . Volume 74, 1995, p. 130.
- ↑ Echinopsis rhodotricha in the IUCN Red List of Threatened Species 2013.2. Listed by: Oakley, L., Duarte, W. & Pin, A., 2010. Retrieved March 2, 2014.
Web links
- Photos of Echinopsis rhodotricha