Melocactus macracanthos
| Melocactus macracanthos | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
.jpg)
Melocactus macracanthos |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Melocactus macracanthos | ||||||||||||
| ( Salm-Dyck ) Link & Otto |
Melocactus macracanthos is a species of the genus Melocactus in the cactus family(Cactaceae). The specific epithet macracanthos means '(Latin macracanthus) large prickly'.
description
Melocactus macracanthos grows with light green or cloudy green, depressed spherical to spherical shoots , which reach heights of up to 25 centimeters with diameters of up to 30 centimeters. There are eleven to 15 (rarely up to 20) ribs that are more or less straight to slightly humped . The thorns are yellowish to brownish. The four unequal central spines - there are occasionally more - are strong and up to 7 centimeters long. The 3 to 4.5 centimeters long eight to 17 radial spines are spread out. The cephalium , which consists of plenty of brown, barely protruding bristles , is up to 24 centimeters high and 13 centimeters in diameter. It is usually significantly smaller than half the diameter of the shoot.
The pink flowers are 1.5 to 2 centimeters long and 0.7 to 1.2 centimeters in diameter. The shiny red, broadly club-shaped fruits are 1.5 to 2 centimeters long.
Distribution, systematics and endangerment
Melocactus macracanthos is common on Curaçao and neighboring islands.
It was first described as Cactus macracanthos in 1820 by Joseph zu Salm-Reifferscheidt-Dyck . Heinrich Friedrich Link and Christoph Friedrich Otto put the species in their first description of the genus Melocactus in the genus Melocactus .
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. 427-428 .
Individual evidence
- ↑ Observationes botanicae in horto notatae . Cologne 1820.
- ↑ HF Link, F. Otto: About the genera Melocactus and Echinocactus, together with description and illustration of the in Königl. botanical garden near Berlin . In: Negotiations of the Association for the Promotion of Horticulture in the Royal Prussian States . Volume 3, 1827, pp. 418-419 (online) .
- ↑ Melocactus macracanthos in the IUCN Red List of Threatened Species 2013.2. Posted by: Taylor, NP & Nassar, J., 2011. Retrieved January 2, 2014.
