Aloe pembana
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Aloe pembana is a species of aloes in the subfamily of the Affodilla family (Asphodeloideae). The specific epithet pembana refers to the occurrence of the species on the island of Pemba in Tanzania.
description
Vegetative characteristics
Aloe pembana grows trunk-forming, sprouts from the base and forms dense clumps. The upright trunk is up to 2 feet long and 8 inches ready. The up to 20 lanceolate, narrowed leaves form dense rosettes . The shiny green leaf blade is up to 110 centimeters long and 9.6 centimeters wide. The leaf margins are sometimes whitish-translucent. The leaf surface is smooth and the leaf sap is light yellow. The white, sometimes brown-tipped teeth on the leaf margin are 1.5 millimeters long and 6 to 10 millimeters apart.
Inflorescences and flowers
The upright inflorescence consists of two to three (rarely up to five) branches and reaches a length of 60 centimeters. The dense, cylindrical grapes are 5 to 18 inches long and 7 to 8 inches wide. The egg-shaped, narrowed bracts have a length of 3 to 5 millimeters and are 2 millimeters wide. The red or yellow, green-tipped flower buds quickly fade to cream-colored or whitish when opened. The creamy white flowers have a green central stripe and are on 16 to 20 millimeter long peduncles . They are 20 to 222 millimeters long and narrowed briefly at their base. At the level of the ovary , the flowers have a diameter of 6 millimeters, above they are slightly narrowed to 5 millimeters and finally expanded to 6 millimeters towards the mouth. Your tepals are not fused together over a length of 12 to 16 millimeters. The stamens and the stylus protrude 5 millimeters from the flower.
fruit
The fruits are berries that reach a diameter of 10 to 12 millimeters.
Systematics, distribution and endangerment
Aloe pembana is widespread in Tanzania on the islands of Pemba and Misali in light shade in the coastal forest on sandy soils at heights of about 3 meters.
The first description by Leonard Eric Newton was published in 1998. A nomenclatory synonym is Lomatophyllum pembanum (LENewton) Rauh (1998).
Aloe pembana is in the endangered Red List species the IUCN as " Critically Endangered (CR) ", d. H. classified critically endangered.
proof
literature
- Susan Carter , John J. Lavranos , Leonard E. Newton , Colin C. Walker : Aloes. The definitive guide . Kew Publishing, Royal Botanic Gardens, Kew 2011, ISBN 978-1-84246-439-7 , pp. 587 .
- Leonard Eric Newton: Aloe pembana . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 168 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 181.
- ^ Cactus and Succulent Journal . Volume 70, Number 1, Cactus and Succulent Society of America, 1998, pp. 27-31.
- ↑ Aloe pembana in the endangered Red List species the IUCN 2012. Posted by: the Eastern Arc Mountains and Coastal Forests CEPF Plant Assessment Project Participants, 2009. Accessed October 17, 2012th
Web links
- Herbarium specimens of Aloe pembana