Aloe congdonii
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| S. Carter |
Aloe congdonii is a species of the genus Aloes in the subfamily of the Affodilla plants (Asphodeloideae). The specific epithet congdonii honors the British Colin Congdon, manager of a tea plantation in Tanzania and amateur naturalist.
description
Vegetative characteristics
Aloe congdonii grows without a trunk, sprouts and forms large groups. Its eight to ten ovate-lanceolate leaves form dense rosettes . The greyish green, red tinged leaf blade is 15 to 20 centimeters long and 3 to 5 centimeters wide. There are numerous elongated, whitish spots on the leaf surface. The pale, tiny brown-tipped teeth on the leaf margin are 1 to 2 millimeters long and 5 to 8 millimeters apart.
Inflorescences and flowers
The usually simple inflorescence reaches a length of 20 to 50 centimeters. Sometimes one or two branches are developed. The more or less dense, almost heady to cylindrical grapes are 5 to 10 centimeters long. The egg-shaped long, pointed bracts are 6 to 8 millimeters long and 3 to 3.5 millimeters wide. The orange- pink flowers are on 18 to 22 millimeter long peduncles . The flowers are 32 to 38 millimeters long and rounded at their base. At the level of the ovary they have a diameter of 8 millimeters. Above this, the flowers are slightly narrowed and finally expanded towards the mouth. Your outer tepals are not fused together for about 10 to 13 millimeters of their length. The stamens and the style stick out slightly from the flower.
Systematics, distribution and endangerment
Aloe congdonii is widespread in Tanzania on rock deposits at altitudes of 1500 to 2375 meters.
The first description by Susan Carter was published in 1994.
Aloe congdonii is in the endangered Red List species the IUCN as " Near Threatened (NT) ", d. H. low risk, led.
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. 412 .
- Leonard Eric Newton: Aloe congdonii . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 127-128 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 52.
- ^ Susan Carter: Flora of Tropical East Africa. Aloaceae . 1994, p. 18.
- ↑ Aloe congdonii 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 August 12, 2012th
Web links
- Photo of Aloe congdonii
- Herbarium evidence