Melocactus braunii
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Melocactus braunii at the type site, Bahia, Brazil. May 2018 |
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| Melocactus braunii | ||||||||||||
| Esteves |
Melocactus braunii is a species of the genus Melocactus in the cactus family(Cactaceae). The specific epithet braunii honors the German agronomist and specialist in Brazilian cacti Pierre Josef Braun .
description
Melocactus braunii grows with dull dark green, spherical to somewhat flat conical shoots that reach heights of 7 to 8 centimeters with diameters of 11 to 15 centimeters. There are 13 straight ribs , rarely 10 or more, which are 3 to 3.5 centimeters wide and 2 centimeters high at the base of the shoot. Eight to nine slightly sunken areoles are formed per rib , which are 1.5 centimeters apart. The initially reddish-brown and later light pink-gray thorns have a reddish-brown tip. The single central spine is curved upwards and about 1 centimeter long. The radial spines are curved like claws or spiders towards the shoot. The lowest radial spike has a length of up to 1.8 centimeters, while the lateral 1 to 1.4 centimeters and the upper 0.4 to 0.8 centimeters long. The small cephalium , made of white wool and reddish bristles, grows up to 4 centimeters high and reaches a diameter of 6 centimeters.
The pink flowers are 1.7 to 2.1 inches long. The club-shaped, pink-colored fruits are 1.7 centimeters long and about 8 millimeters in diameter.
Distribution, systematics and endangerment
Melocactus braunii is distributed in the north of the Brazilian state Bahia in the Serra do Tombador .
It was first described in 2003 by Eddie Esteves Pereira .
In the Red List of Threatened Species of IUCN is the species as " Critically Endangered (CR) ", d. H. listed as critically endangered.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 424 .
- Pierre J. Braun, Eddie Esteves Pereira: Melocactus braunii - an interesting species from Bahia, Brazil . In: Cacti and other succulents . Volume 56, Number 6, 2005, pp. 146-151.
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 31.
- ↑ E. Esteves Pereira: Melocactus braunii Esteves - a new species of Cactaceae from Bahia, Brazil . In: British Cactus & Succulent Journal . Volume 21, Number 3, 2003, pp. 139-142.
- ↑ Melocactus braunii in the IUCN Red List of Threatened Species 2013.2. Posted by: Braun, P., Machado, M. & Taylor, NP, 2010. Retrieved January 2, 2014.
