Melocactus salvadorensis
| Melocactus salvadorensis | ||||||||||||
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Melocactus salvadorensis subspec. oliveirae |
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| Melocactus salvadorensis | ||||||||||||
| Werderm. |
Melocactus salvadorensis is a species of the genus Melocactus in the cactus family(Cactaceae). The specific epithet salvadorensis refers to the occurrence of the species in Salvador da Bahia .
description
Melocactus salvadorensis grows with green or blue, depressed spherical to pyramidal spherical shoots that reach heights of 12 to 20 centimeters with a diameter of 12 to 25 centimeters. There are eight to 14 sharp-edged ribs with a triangular cross-section . The yellowish to reddish brown thorns are initially drowned out in gray. The one to four central spines are 1.5 to 3 centimeters long. The seven to ten radial spines are 2 to 4.5 inches long. The cephalium , which consists of sparse grayish white wool and dense, reddish bristles , is up to 15 centimeters high and has a diameter of 6 to 10 centimeters.
The somewhat pink-magenta colored flowers are up to 2.5 centimeters long and 1.2 centimeters in diameter. They barely protrude from the cephalium. The club-shaped, somewhat flattened, deep lilac-colored magenta fruits are up to 1.7 centimeters long.
Distribution, systematics and endangerment
Melocactus salvadorensis is found in the east and south of the Brazilian state of Bahia .
It was first described in 1934 by Erich Werdermann .
Werdermann described the plants as green, and it was only later in the literature (e.g. also in Anderson 2005) that a blue body color was also given. Indeed, Bahia has a population of consistently distinct blue-gray plants. This clan was described as a separate subspecies in 2016:
Melocactus salvadorensis subspec. oliveirae PJ brown
In the Red List of Threatened Species of IUCN is the species as " Vulnerable (VU) ", d. H. listed as endangered.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 430 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 212.
- ^ Note sheet of the Botanical Garden and Museum in Berlin-Dahlem . Volume 12, 1934, p. 228.
- ↑ Braun, PJ (2016): Melocactus salvadorensis subsp. oliveirae (Cactaceae) - a new subspecies from Bahia, Brazil. - cact. and. Sukk. 67: 179-182
- ↑ Melocactus salvadorensis in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Braun, P., Machado, M., Taylor, NP & Zappi, D., 2010. Retrieved January 2, 2014.