Smooth tree loop
| Smooth tree loop | ||||||||||||
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Periploca laevigata , Tenerife , south side, succulent bush |
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| Periploca laevigata | ||||||||||||
| Aiton |
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The smooth tree sling ( Periploca laevigata ) (Spanish common name Cornicabra or Cornical ) is a species of tree sling ( Periploca ) from the subfamily Periplocoideae , which is part of the dog poison family . This species is endemic to the Canaries , Ilhas Selvagens and Cape Verde .
features
The smooth tree loop is a shrub with twisting, brown twigs that can grow to heights of up to 2 meters. The leaves are lanceolate to obovate, taper towards the base in a short stem and have a leathery consistency.
The flowers sit in small panicle-like inflorescences in the upper part of the shrub in the leaf axils . The hermaphrodite flowers are about 1 to 2 cm in diameter. The petals are elongated and rounded at the end. They have a yellowish green edge, inside they are brown, z. Sometimes with a few white spots. The secondary crown has five curved appendages.
The paired follicles that are fused at the base are up to 15 cm long and 1 cm in diameter. The two fruits look like horns; hence the Spanish name Cornicabra = goat horn.
The number of chromosomes is 2n = 22.
Occurrence
The smooth tree loop occurs on all Canary Islands and on the Ilhas Selvagens in the succulent bush of the drier areas of the islands. In Cape Verde, it populates the islands of Santo Antão , Santa Luzia , São Nicolau , Santiago , Fogo and Brava .
Systematics
The first description by William Aiton was published in 1789.
The populations of the Cape Verde Islands are partially separated as a separate species ( Periploca chevalieri Browicz ) or subspecies ( Periploca laevigata subsp. Chevalieri (Browicz) G. Kunkel ), but this separation is rejected in the monograph by Venter (1997).
literature
- Peter Schönfelder , Ingrid Schönfelder: The Kosmos-Canary Islands flora. Over 850 species of the Canary Islands flora and 48 tropical ornamental trees (= Kosmos nature guide ). 2nd Edition. Kosmos, Stuttgart 2005, ISBN 3-440-10750-7 .
Individual evidence
- ↑ Periploca laevigata at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ↑ Manuel Arechavaleta, S. Rodríguez, Nieves Zurita, A. García (eds.): Lista de especies silvestres de Canarias. Hongos, plantas y animales terrestres. 2009. Gobierno de Canarias 2010, ISBN 978-84-89729-21-6 , p. 148 (PDF file, 12.5 MB). ( Memento of the original from November 15, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ A b c d Alfred Hansen, Per Sunding: Flora of Macaronesia. Checklist of vascular plants (= Sommerfeltia. Volume 17). 4th revised edition. Botanical Garden and Museum, University of Oslo, Oslo 1993, ISBN 82-7420-019-5 , pp. 34-35.
- ↑ a b Manuel Arechavaleta Hernández, Nieves Zurita Pérez, María de Carmen Marrero Gómez, José Luis Martín Esquivel (eds.): Lista preliminar de especies silvestres de Cabo Verde (hongos, plantas y animales terrestres). 2005. Consejería de Médio Ambiente y Ordenación Territorial, Gobierno de Canarias 2005, ISBN 84-89729-25-5 , p. 46 (PDF file, 5.6 MB).
- ^ William Aiton: Hortus Kewensis, or, a catalog of the plants cultivated in the Royal Botanic Garden at Kew . Volume I (Monandria – Heptandria), George Nicol, London 1789, p. 301 ( online ).
- ^ HJT Venter: A revision of Periploca (Periplocaceae). In: South African Journal of Botany. Volume 63, 1997, ISSN 0254-6299 , pp. 123-128 (here: p. 126).
Web links
- Flora Vascular de Canarias.
- Periploca laevigata in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.