Aloe downsiana
| Aloe downsiana | ||||||||||||
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| Scientific name | ||||||||||||
| Aloe downsiana | ||||||||||||
| TAMcCoy & Lavranos |
Aloe downsiana is a species of aloes in the subfamily of the Affodilla family (Asphodeloideae). The specific epithet downsiana honors the British dentist Philip E. Downs (* 1938), who is interested in aloes.
description
Vegetative characteristics
Aloe downsiana grows in a stem-forming manner , is branched individually or rarely with one or two branches from the base. The prostrate or drooping trunks reach a length of up to 150 centimeters and are 5 to 7 centimeters thick. There are hardly any remains of dead leaves on them. The twelve to 15 leaves are lanceolate. Your cloudy dark green leaf blade is 50 centimeters long and 15 centimeters wide. The reddish brown pointed teeth on the leaf edge are 5 millimeters long and 20 millimeters apart. The leaf sap is yellow. It dries almost clear.
Inflorescences and flowers
The upright inflorescence consists of up to five branches and reaches a length of up to 120 centimeters. The fairly dense, cylindrical-pointed grapes are up to 35 centimeters long. The narrow, lanceolate, white bracts have a length of 10 to 12 millimeters and are 4 millimeters wide. The pink, tiny, fluffy flowers are yellow at the mouth and are up to 10 millimeters long, pink flower stalks . The flowers are 30 to 35 millimeters long. At the level of the ovary , the flowers are 7 millimeters in diameter. Your outer tepals are not fused together over a length of 12 millimeters. The stamens and the pen stand 2 to 3 millimeters out from the flower.
Systematics and distribution
Aloe downsiana is widespread in Ethiopia on vertical, overgrown rock surfaces at heights of about 2175 meters. The species is only known from the locality of the type.
The first description by Thomas A. McCoy and John Jacob Lavranos was published in 2007.
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. 515 .
Individual evidence
- ↑ Gideon F. Smith, Colin C. Walker, Estrela Figueiredo: What's in a name: epithets in Aloe L. (Asphodelaceae) and what to call the next new species . In: Bradleya . Volume 28, 2010, p. 91.
- ^ Thomas McCoy, John Lavranos: Two new species of Ethiopian Aloes . In: CactusWorld . Volume 25, Number 3, 2007, pp. 137-140.
Web links
- Herbarium specimen of Aloe downsiana