Alluaudia procera
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Alluaudia procera |
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| ( Drake ) Drake |
Alluaudia procera is a species of plant in the genus Alluaudia in the Didiereaceae family. The specific epithet procera (Latin procerus ) means 'elongated, slim'.
description
Alluaudia procera grows as a tree-shaped, 6 to 10 meter, sometimes up to 15 meter high shrub with a narrow crown of vertical shoots. On the shoots there are many conical and silver-colored thorns in wavy to spiral rows , which are 10 to 25 millimeters long. The ovoid to obovate leaves initially appear individually below the thorns and are 7 to 25 millimeters long and 4 to 12 millimeters wide. Later the leaves stand in pairs and point with the narrow side up. The young leaves have a felty surface.
The yellowish to white flowers appear in large panicles 12 to 30 centimeters in diameter. The top-shaped fruits are 2 to 3 millimeters long.
The number of chromosomes is 2n = 240 or about 256.
Distribution and systematics
Alluaudia procera is distributed in the south and southwest of Madagascar on acidic or alkaline soils.
The first description of Alluaudia procera done as Didierea procera 1901 by Emmanuel Drake del Castillo . In 1903 the same author placed the species in the genus Alluaudia, which he newly established .
literature
- DG Rowley : Alluaudia . In: Urs Eggli (Ed.): Succulents Lexicon Volume 2 Dicotyledonous plants (dicotyledons). Ulmer, Stuttgart 2002, ISBN 3-8001-3915-4 , p. 100.
Individual evidence
- ^ Alluaudia procera at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ↑ In: Comptes Rendus hebdomadaires des Séances de l'Academie des Sciences . Volume 133, Paris 1901, p. 241 (online) .
- ↑ In: Bulletin du Muséum d'Histoire Naturelle . Volume 9, Paris 1903, p. 37 (online) .
Web links
- Alluaudia procera inthe IUCN 2013 Red List of Threatened Species . Listed by: World Conservation Monitoring Center, 1998. Retrieved May 6, 2014.